Don't pay any sin sod if it's not a thing in your culture. I'd consider it only if the wife to be was a virgin, never married with no kids from a decent and proper family.
You wont have a problem renting any car or any motorcycle without a licence in Thailand. Many Thais are also getting around on the roads without one. This doesn't mean you should.
I personally have no interest in pretentious wannabe Hi-So Chinese Thai women that look like they couldn't fight their way out of a wet paper bag. It's also of little importance to me if my girl attended university let alone which one. Sounds like this person has led a very insulated and superficial life to believe these are traits that any real men are looking for.