58 here. Working full time. I get 75-100 miles each week depending on weather (Zwift with a smart trainer when not outdoors). Funny thing is I tend to ride more easily in the 90-95F heat than 40-60F n the Winter (central Texas) so Zwift is my Winter platform.

My average outdoor climb is about 800-1000ft in 20mi.

Just yesterday I did my longest ride ever (been riding a single speed for 11yrs until a month ago when I bought a TREK Checkpoint ) Zwift, 51mi and ~2400ft. My a$$ hurts for being in the saddle that long, I’m used to standing when climbing outside which really helps. Either way I’ll take that record.