hello i am native korean and i am 13. if i turn example sentences as korean, 제가 이것을 먹어도 될까요? 제가 화장실에 가도 될까요? korean has two types of speaking for friends and for adults the examples are for adults and these are for friends 내가 이거 먹어도 돼? 내가 화장실(을) 갔다와도 돼? if you remove 을, it can sounds more naturally. send me message if you need more help. :)