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As a follow up to you post about mentors, just to make things fair, what are examples of Tikki being a bad mentor to Marinette?
Post in question for context.
Tikki often acts as the voice of the author. She's there to explain why Marinette is in the wrong. Since Miraculous has some wacky morals, that means we get a mix of good advice and wacky nonsense advice.
Two examples of bad advice that come to mind are Gamer and Strikeback. Gamer is the episode where Marinette stumbles upon an Ultimate Mecha Strike tournament, realizes that Adrien is taking part, and decides to compete so they can be on a team together. Marinette wins a spot through her own hard won skills and then this happens:
Tikki: All you wanted to do is spend time with Adrien, there are other ways to do that! Marinette: What are you getting at? Tikki: You know how much Max wanted to be in that tournament. Kim said he'd been training for it all year. Marinette: You're right. All I could think about was Adrien.
This is how tournaments work, right? They're not tests of skill, but tests of who put in the most work or who wants to compete the most! That's why we had that scene with Marinette writing out her training schedule and motivations for evaluation, but she lied and that was wrong and...
Okay, I was the one lying here. There was no written evaluation because that's not how tournaments work. All anyone cares about is your skills. They don't care if you're doing this for personal glory or to get closer to a boy or whatever Adrien's motivation was because - notably - his motivation didn't matter in this episode about needing pure motives to be allowed to do things.
What if he didn't care about the competition and only did it to get closer to his classmates? That's not even a random guess. It's a valid read because Adrien ultimately gives his spot to Max while claiming that Max is the better player even though Adrien very clearly beat Max at the start of the episode. Ignoring that weird nonsense dialogue, why was it fine for Adrien to compete when he didn't care but wrong for Marinette to do the same? And Max wanting to compete to show off his skills is also a totally selfish motivation, so why does it matter that he wanted it more? Everything about this episode was nonsense and uncomfortably sexist. If Max wants to compete, then he needs to get better at the game. That's how competitions work.
Strikeback is the second part of the season four final and it starts with Marinette mourning the fact that "Adrien" has left Paris, leading to this:
Marinette: (crestfallen) It's all over, Tikki. Tikki: He'll be back, Marinette. He's just going on a voyage!
Which would be lovely advice if Adrien was a normal boy, but he's Chat Noir and Tikki knows that. She should be freaking out and trying to find a way to get him back to Paris, but then Tikki would have to support Marinette's actions and we can't have that, so instead Tikki gives this nonsense advice because she has to be against whatever "wrong" thing Marinette is doing today.
I could come up with a few more examples, but I think those two paint a pretty good picture of issue one re Tikki. However, when it comes to Tikki, my main issue with her is less a wealth of bad advice - unlike Plagg*, I think she's right more often than not - and more a lack of support. It feels like she's just here to judge Marinette and point out when she's doing something wrong, but a good mentor should be so much more than that.
Kuro Neko is a great example of this. When Chat Noir quits, Tikki just sits back and does nothing while her young charge is freaking out. She doesn't even try to defend Marinette when Plagg is going off about Chat Noir's "ill treatment". For all Plagg's faults in that episode, at least he's doing something about the situation. Meanwhile Tikki literally has two lines in the entire episode! A similar thing happens in Kwami's Choice where Plagg is the one driving them to act while Tikki just wrings her hands in despair.
Tikki: (sighs heavily) What can we do? Plagg: We must free them of that impossible choice. We must… free them of us.
These are not the actions of a mentor. Mentors aren't supposed to just offer judgement about things that their mentee has already done or is considering doing. They're supposed to be a source of support and guidance in hard times, but we never really see Tikki stepping in to give Marinette that kind of advice. If memory serves, she never offers solutions or acts as a sounding board. That role is mainly filled by Alya and I love Alya! It's good for Marinette to have support from a friend, but Alya is also a teenager while Tikki is an ancient being who has seen many Ladybugs go through the kind of struggles that Marinette is going through. I expect her to use that knowledge to help her charge, but she never does. This exchange from Passion perfectly highlights this problem:
Tikki: Don't worry, Plagg... my holder has decided to run away from her real feelings to pursue an impossible love with Cat Noir instead. Plagg: Uh, just to be sure, sugarcube, you do know that Cat Noir and my holder are one and the same person, right? Tikki: I do, but my holder doesn't. Plagg: If she declares her love to Cat Noir, something tells me she'll find out soon enough. Tikki: You have nothing to fear. When my holder is in love, she never gets anywhere. She'll just knit hats and make very complicated plans that will never come to fruition. Plagg: Hmm... ah, then everything's fine.
Tikki, I love you, but by the gods! With a mentor like you, Marinette doesn't need enemies to be miserable! Do you care about her at all??? What kind of mentor delights at their mentee's suffering? Not a good one, that's for sure.
*Quick note: I think that Plagg and Tikki are probably neck and neck for who has given the most bad advice, Plagg just feels like the bigger problem because we don't see him as much as we see Tikki. Since she's tied to the main character, Tikki gives advice in almost every episode and most episodes have decent morals.
Adrien's need for good advice can also feel more glaring because he's so isolated and passive. That makes Plagg's lack of good advice feel more harmful, but Marinette is just as isolated from real advice. Her mentor figures - Su Han, Fu, and Tikki - mostly give orders and judgement instead of support and guidance. It's just harder to spot that fact because Marinette is actively trying to do the right thing, meaning that she's more likely to make mistakes, and it's easy to see why she comes across as a lot less pathetic and a lot easier to judge.