Make sure you have documents supporting your language school and attendance record whenever you enter Thailand, or expect to get interrogated and possibly denied entry
So until you're 50 you're going to be jumping through hoops to stay here unless you get the Elite Visa (or Privilege as it's now called), or Long Term Resident Visa (which has some very stiff criteria). You need to look into education costs in Thailand, these can be very expensive for international schools. That's where you should start your research.
Ah yes, but you pay for the second 30. The freebie runs out after 30 days. And you're right, UK should be downgraded. Thais have to jump through hoops and pay 5000 baht for a UK visa
Most only get 30 days free entry. I don't know of any that get 60. There's a few that get 90. If Schengen countries end up getting 90, expect to see a lot of crying from Americans and British! 😆
If this should go ahead, I would imagine citizens of Schengen countries will get the "reciprocal rights" agreement and may get 90-day visa waiver entries into Thailand