I don't think at 120, anyone has the energy or patience to battle with a magic-slab. Jokes, aside, 18+ is fine, as they will have more responsibilities to util

I don't think at 120, anyone has the energy or patience to battle with a magic-slab. Jokes, aside, 18+ is fine, as they will have more responsibilities to utilise the magic-slab for something useful(calendar, communication, meeting, information sharing, e-mails, calls, documentation etc..) over entertainment-only(social media death scrolling).