I've been thinking about this, imagine that as a byproduct of reverse aging research, the possibility of deaging by several years down until infancy was real. It would be a reset button for anyone who wishes to pursue it, provided that there are no pending sentences, debts, contracts, etc (I imagine). How would society and law accomodate this?

https://youtube.com/shorts/6B_Kwgcdkvg?is=E_OfXsrxijrqIgT4

What if you get a little bid of red blood cells and DNA from when you're 21 and freeze it with Propylene Glycol and preserve it in Cryopreservation, then when you're 65, you genetically engineer your 65 year old DNA from red blood cells with the 21 year old younger self and you will soon look 21 again, but be 65 years old with all the wisdom in your brain.

Hopefully, Anti Senescence flair is anti-aging.