

I’m 40 (1985). I’ve had my experiences with older guys hitting on me when I was your age. I can tell you that, in my experience, the reason why men like that won’t date in their own age group is because women their age see the red flags more clearly or won’t put up with their bullshit.
Here are some things he might do to look out for: Does he try to impress you with things that are achievements for your age group but should be normal for his? Having a car, having their own apartment, having money to take you out etc. Maybe he’ll offer to drive you places or stay at his place to get away from your parents.
Does he comment a lot on your age and experience level. Things like “Have you already done (alcohol, sex…)”, “I’ve done XYZ, but you wouldn’t know about it”. Or does he act overly impressed by you ‘already’ knowing something, like music from his teenage years, having a job or just some common knowledge he thinks is “adult”, maybe about cars or jobs. Basically, does he act like you are special, more mature for your age or does he talk about your age a lot.
Even if he doesn’t do any of these things, I’d advice you against it. The age gap is too big. The world of an 18 year old who just got out of school is just very different from a 33 year old who is working a job. Having a few hobbies or music taste in common isn’t the same as being in the same place in life.

I went to the cheese museum in Gouda last year and they explained that according to the current theory our ancestors discovered butter and cheese by hanging pouches of milk on their horses or cattle while traveling. The movement would turn the milk into butter and, if they used pouches made of animal stomach, the bacteria would turn the milk into cheese. So this is more or less the method by which we discovered butter in the first place.