Aries, absolute agreement here.
If a young man can’t share a drink with a young woman without someone (else) to hold his hand he probably isn’t ready to start dating.
As for meeting the parents, yes. An eighteen year old who is just getting to know a young man is going to have a hard time standing up to the scrutiny. She’s in a strange place with whom she has an undefined relationship. He will be obliged to defer to his parents who are going to be hyper-critical of the new girl. I can’t see any way it could turn out well for either of them. If the families already know each other it’s different, of course.