Well, while I get your point - only one major free soloist actually died while free soloing, and it's believed he suffered a heart attack or stroke or something along those lines while climbing (and late on in his career/life).Daddy won't be around anymore because he needed to climb a cliff without safety gear.
A lot of prep and training goes into free soloing - tons of hours of training, learning the route off by heart. They could describe and demonstrate every movement.
It's an unnecessary risk, but they're not just doing it for a cheap thrill as such.
After Dean Potter (another famous free soloist) died, Alex Honnold wrote an article about the whole thing. Might help you understand it from his/their perspective a bit.
@Strike you might enjoy reading it as well - if you've not already seen.
I know Alex gets all the glamour, and is probably the biggest name in the climbing world, but he's a freak of nature. I think he's probably finished as a free soloist as well, at least in terms of the big projects - there's not much bigger than El Cap