I cut mine because I was tired of having straight roots. It's nice to have my root curl back.
I may get tired of it short and grow it back out again, but I think I'll keep this length for a bit.
If I ever get age related thinning, I'd probably go shorter. A thinning scalp does seem to show more on longer hair.
I think age rules for hair length are silly, though. If you like it, wear it.
Siri types my posts for me.
Med/Coarse, porous curly.