You should just talk to the school and ask if it is okay if you have your son with you in class. Honestly, some of the schools are scam schools without required attendance. The classroom is practically empty. Just talk to the schools. Worst they can say is no.
Please don't do Hua Hin. It is where souls go to die. You are still have young and should enjoy your retirement. Do Jomtien please, don't let your soul die.
those caddy outfits are so ugly. The girls dress like ninjas. I always tell them that they get more tips if they are in short shirt and tight blouse. But I guess those Thai girls care more about their skin than money.
I care about money because I don't ever have to worry about it. It sucks to be you. You will never be financially secure and live an amazing life as this idiot.