9. Personal space is huge
This is an issue that you need to keep in mind while dating an only child. They grew up literally with all the personal space they wanted. They had no siblings to share anything with, whether it was food or parent’s love. So if you are using their things while dating them, don’t get freaked out if they don’t like it. An only child does not like seeing their things being taken or used. It’s not personal, it’s just who they are.