Moving to Thailand forever comes down to 2 things only.
Money and a long term visa.
If you are young and cannot qualify for a long term visa (Visa Elite, Retirement Visa, LTR Visa, or a marriage Visa) you will not be living in Thailand forever.
So many people want to live in Thailand only to overlook the long term visa requirements.
Each VISA also has it’s own financial requirements or the requirement to leave money in the bank each year to meet the requirements.
It is best to understand if you can even qualify to live in Thailand before getting your hopes to high.