Curate, connect, and discover
I was rewatching Young Justice and the fact that all versions of Robin are the only one forced to keep their secret identity even with their teammates and friends is usually written off as Batman being paranoid. I think it's more than that, that it's his way of giving the kids an 'out'. If they ever decide they don't want to fight crime anyone they have a safe identity to return to, no obligations.
They are children first, soldiers second. Bruce knows better than anyone the loneliness his job brings and of course he would want better for anyone, especially his kids.