No. Quit the opposite. I love being the age I am (in my 60s). I have a lovely wife and beautiful house. Financially secure. I don’t need to work for anyone else. It was a hard slog but I got where I want to be. I wouldn’t want to be in my 20s or 30s or 40s - it looks like hell.
Ok I don’t have so much hair but that’s ok and my skin is wrinkly and I ache when I wake up - but all these things I can deal with. I’m probably fitter now than in my 20s as I look after myself more. I know my limits and still exceed them for fun.
I intend to enjoy life. OK 20 year olds sure look pretty I give you that!
(provocative post - well done OP)