Question for those who play with aging off??

I kind of feel like they are on the same time line as me kind of? I don't want to have to worry about working against the clock to get things done on them. I also get attached to them and feel like all that work I put into them to skill them up will go to waste if I let them die off.
If I get tired of them I put them in my library with notes on what they are high skilled in.
I wonder how people play with aging on :D ...