I just don't think you get it. If you make old people exempt from property taxes, then everybody will just sell their properties to their parents and old people will never move out until they die.
Older people already get social security. Now you want to exempt them from property taxes? Half of thrm are millionaires too. While young families struggle to get by? No way that's right.
ANY reduction of property taxes, even if it's only for a "special class" of people, will jack up property values farther out of reach of ordinary people that actually have to work for a living.