That’s more of a preference. The “your age divided by 2 plus 7” rule is more about social acceptability of the relationship. But hook-ups are just sex, and generally not subjected to scrutiny, and that doesn’t have to be acceptable to anyone but you and your partner.
Most people generally like to keep their partners in their age range, but it’s very flexible depending on the prospective partner. And there are quite a few young people out there that do genuinely like more mature sexual partners even if they’d never actually date them.
Half your age plus seven is the “general rule” I’ve always heard, but there are always exceptions. Even with that 23 and 20 is fine.
I’ve known some people who had a ‘+5 on weekends’ amendment to that rule.
That’s more of a preference. The “your age divided by 2 plus 7” rule is more about social acceptability of the relationship. But hook-ups are just sex, and generally not subjected to scrutiny, and that doesn’t have to be acceptable to anyone but you and your partner.
Most people generally like to keep their partners in their age range, but it’s very flexible depending on the prospective partner. And there are quite a few young people out there that do genuinely like more mature sexual partners even if they’d never actually date them.
That calculation was a joke that justified old men dating women barely half their age. It wasn’t meant to be an actual guideline