Will boomers ever move out of their detached houses?

There are a few street in my neighborhood with really nice detached houses, but the vast majority are occupied by baby boomers, who have likely lived there for 25+ years. I was thinking the other day how I rarely see any of these houses for sale compared to other areas/streets where sales happen more often.

It made me wonder if there is anything that may/could cause more of them to sell their houses (besides illness or death)? Obviously the huge price increases in the past few years didn't move the needle. What about if prices start to drop (or drop a lot)? Or costs (i.e. property taxes, heating, insurance, etc.) start to rise?

The few boomers that I know aren't relying on home equity for retirement and aren't too concerned about their home's value. Then again, my sample size is very small.

So for those of you who are or know many boomers, do you think anything could cause them to want to sell on a larger scale? Or do we just need to wait for them to die off?!