Curate, connect, and discover
Its time for my favorite saga! The quirk analysis saga (which I will definitely be revisiting again after I've cleared all the rants I've already written)!
I wanna start the saga off with my base theory for everything. By that I mean, this is an entire different thing from canon and is where I think quirks come from. However, in future quirk analysis's I will include one that is based on canon and one that is based on my own theory. Now onto the theory :)
I believe that quirks are advanced form of evolution. My reasoning for this is that a lot of the people of the my hero world have quirks that can be explained by evolution (ex. Mina, Momo, Bakugou, etc.). I’ll get into explanation about a lot of this evolution when it comes to specific people.
You'll see this theory used a lot when it comes to my analysis of Mina and Momos' quirks especially. But, to backtrack on what I said, I think quirks are based on evolution. Every quirk has some way to be explained via science and evolution. Looking at Mina and Momos' quirks are actually where I got this theory from! It's kina hard to explain by itself but I can tell you Minas analysis is next and so you'll see this used more there (^^)
TLDR: I think quirks are based on evolution and have evidence to base this off of that you'll see in future rants.
Ya know, ya gotta wonder if there's quirks in BNHA whose activation conditions are just... Not possible for pre-pubesent kids? Stuff that's hormonally based or requires specific pathways to exist in their brains?
I would say that logically, given the spread of quirks we've seen in canon, the chances of this kind of thing being possible is very high.
Or, if not, it's only because the quirks themselves alter the individual so that the activation ingredients are present regardless of whether or not they technically should be as a type of inbuilt, quirk-related mutation type of thing that expresses itself even before the quirk is technically activated.