I'm in my early 30s, and I consider that to be pretty young. Part of it maybe that my great-grandpa & grandpa lived into their 80s. My grandpa was also physically active till the end, and he only passed away when he did because his body couldn't sustain the surgery.

My dad is in his early 60s, and doesn't plan on retiring/chilling before 70. I'm hoping he enjoys his 70s & 80s playing with his future grandchildren.