He speaks like an underage user

also they're british they said "mum"

Nah they probably think it sounds cool

as a brit i hate the way it sounds and go out of my way to say mom

As someone without the accent but has british citizenship I can say that it sounds rather mid

i don't know anyone who talks like that irl
in fact pretty much everyone i know has made fun of it at least once

Yeah same, people where I live are brutal against that accent

perhaps