Transmission shop here in Atlanta that was around since the 60s closed a few years ago. All the guys were brothers and cousins, etc. but they were all in their high 60s and 70s. None of their younger relatives/kids or whatever had the desire or skill to take over the business.
They were working on old fashioned automatic trannys since they were new.
They rebuilt the Hydramatic in my Cadillac in 2011 and it runs like new on what is essentially a daily driver with several trips to Tampa and back. The last tranny they rebuilt was on a 1959 Imperial. They closed down just two months later.