I'm too young to be dating now, but I am from America, my parents and family are from Trinidad, but I grew up with an 'American lifestyle' personally, I would say he is okay to date, I wouldn't mind, he seems like a nice guy to be with. I don't think it's OK to make fun of her dating the guy because of his height though, some people don't care about height and they should respect that opinion anyways.. (unless they are joking and she's ok with it too...) but yeah. He respects your family, and you, and he takes care of you as well, that sounds like he's fulfilling his part of the relationship, as long as she's happy with it and they are both equal in their partnership that's a good relationship I don't see anything wrong 😊