So it's not OK for rising rents to force property elderly owners to sell and move away, but it is OK for rising rents to force elderly renters to move away?
You can't defend property tax deferments for the elderly without also defending rent control for them. Either way you have the same problem of local residents thinking it's OK for everyone else to suffer lower supply and higher costs, as long as they aren't suffering.
That might make rational sense but it is not how homeowners actually behave.
This scales for quite a long time, and is generally how suburbia transforms into, well, east San Jose.
It's not that homeowners make rational choices as a result, it's that over time they are pushed out and the rational choice is made by the larger market.
Prop 13 is immoral and has not only wreaked havoc on real estate market in the state but has also gutted the state's public education system. It needs to be repealed before any progress on these housing issues can be made. There can be provisions to ensure that people don't lose their homes to rising property taxes...Texas, IIRC, has one that allows property taxes to accrue and only need to be paid when the title of the property changes hands, which seems like a good compromise. But the state's population is going to go up which means we're going to need to build a lot more housing, and our laws need to create an environment where that can happen.