Yes, I have always looked a good bit younger than I am until about a couple of years ago. The effects of my sleep apnea are finally catching up with me, making me look older. If I am ever able to get more sleep, I think I will go back to looking younger than my age.
Staying inside a lot, and often not showing expressions may be part of the reason. But why knock it. Now that I am in my early 50s I like the idea of looking younger, and without any medical treatments or surgery.
Re: Lip injections. Yes, they look horrible, and stupid. But if someone wants to look dumb, they have a right to. Besides it gives me something to be amused about, although I wouldn't tell them that.

I also think breast implants for other than medical reasons (cancer surgery, accident, etc.) are dumb. Some women really carry it too far, getting implants that are way too big for them. Also, most of these women would have perfectly decent sized breasts of their own if they would stop starving themselves into skeletons, and instead eat more--of healthy foods, and keep themselves toned with some exercise.