Unfortunately these days many Thais can look down on women with a farang (foreign) boyfriend.
The thing is that becoming an EFL teacher is so easy in Thailand (just be Western and have a pulse) that there's not much respect for it. A lot of seemingly ambition less men come to teach in Thailand.
That means that if locals don't think that your Thai date is a prostitute, they'll think that you're a loser EFL teacher. That may either be about Thailand's culture and language. If you know too much about Thai culture and language then she can't really walk around you.
To avoid either of this your young Thai date will just avoid dating you. Sure you might think that it doesn't matter but in Thailand it does. What if you're a suit-wearing professional in Bangkok? You'll understand everything she says and she won't have the edge over you that she could have with some expat who doesn't know anything.
If you have uncontrollable diarrhea, your wallet has been stolen, your drink has been drugged and you have started to suspect your girlfriend is really a dude then you are on a real Thai Sex Patrol.
Surprised to hear that many beautiful and young Thai girls won't want to date a foreigner?
After all - aren't Thai women supposed to be "easy"?
This 'myth' was maybe more practical 50 years ago…but not anymore.
If you're having a hard time dating Thai women then rest easy - it's not all your fault.
Get a quick crash course on what's been going on in the Land of Smiles. There are two stereotypes of foreigners that make it hard for dating young Thai women.
You're either a Sexpat - This is due to the high levels of sex tourism in Thailand.
Many foreigners come to Thailand to have a good time at the gogo bars and the sex spots.