Potential relationship

So I’m 22 and I’ve been talking to this guy that is 18 my friends/ sisters say I need to leave him alone because of his age and because he wants to be in a relationship. But I don’t see anything wrong with it yes I’m 22 and he’s 18 or about to be 18 but it’s like he’s a cool dude and we connect we can talk about anything. And before anything say anything yes I’ve tired talking to dudes older than me and my age but for some odd reason I attract younger guys like it never fails younger dudes just like talking to me.

Can anybody help and give me some advice on what to do