If you had the choice to be a billionaire if you go back a few million years in earths age but have to wait it out til you reach the age of humans. Would you do it and wait?
Practically you already waited all that time but you weren’t aware of it. Now imagine having to watch it.
The closest experience I ever experienced in my life was my prelife form without a physical body.
I can’t say if it was relaxing, scary, unfulfilling or any thing. I was in a state of time being meaningless.
One day when I quit existing I will return and hopefully remain in that state for a long time until I start existing again. I have never been asked if I wanted to exist so I just exist until I quit existing