I have written about this before but 'I DUNNO, CAN YOU?' is just bullying kids for speaking like everyone else. Literally no one says 'may i'.

I also just dont like asking for permission to do things im entitled to. If I gotta go to the can at work or im taking a break, I tell people, I dont ask. People ask me at work if they can go on break when they wanna take one, I know they're just making sure it's a good time to do so cause i'm the one who would know best whether we're about to get slammed or if we're approaching the end of a rush etc. It's also an ESL thing with the phrasing im sure, but part of that kinda makes it feel doubly bad where these phillipino guys twice my age are asking permission to take a break when im not even really their boss. My job just makes it seem that way, im the navigator, not the captain to use a ship metaphor. Anyway. I just repeat that they dont need my permission and to take their time. I'm not gonna debase myself so I can take a shit, to expect it is perverse and weird