I don't get what's wrong with asking permission for things when in a relationship. It's just polite decorum and part of linguistic interest.

It's like if you were helping a friend dig a hole and partway through said "you alright if I take a break?" It might look like asking permission but the answer is implied, the cognitive load isn't a question but just an utterance. It's polite.

Been married 20 years and that's just how partners talk, even friends talk. If not partners then surely you must have friends and have experienced this. I ask permission to leave the house, just out of courtesy: I'm going either way, I've never been stopped unless there was a genuine need and ultimately I agreed.

If you're not a wretched mongoloid then you'd understand how to properly register your speech.