You are wrong. If you followed the story of the fee at all, you would know that it's been talked about for around 10 years at this point. It is only for foreigners, and been said multiple times by the government that it's only for tourists. They CANNOT add it to the ticket, because airlines will not add a fee that only applies to certain people. It's all or nothing. Thailand has never figured out a way to collect the fee, so it has not been implemented. There was a proposal that came up for a very short time earlier this year, where they would charge everyone, and then Thais could apply for a refund of the fee. That only lasted about a week before it was never talked about again. They now have a way to collect it from targeted people, with the TDAC. Every foreigner is required to submit a TDAC before entering Thailand, and they can use that to collect the fee for visa exempt entries, and add the fee to the tourist visa application fee for embassies.
