..and you're not allowed to walk into someone's house if they only have a door frame instead of a locked door. they are for preventing criminals from forcefully

..and you're not allowed to walk into someone's house if they only have a door frame instead of a locked door. they are for preventing criminals from forcefully breaking in. but you don't have to break in to commit the crime. that's why it's called "breaking and entering" - there are two criminal acts committed.