Yes, I have been using MRT elder card for years and it is 50% off . I originally got one from BTS and I topped up with 500 Baht. Went through the gate and security took away my card. No refund!
It'll be interesting to see if the new government get their "Flat rate of 20 Baht" through. Will this be for Thais only?
Will there be dual pricing and foreigners charged 4 , 5 or 10 times the Thai rate as in National Parks?