"However I'm starting to think a motorcycle sounds rather interesting,
of late!  More fun than a four-wheeled vehicle, and much better gas mileage.
Is this what happens after one passes the big five-oh?  How hard is it to
learn to ride one, at my age?"

My brother and his family all have "toys-with-switches". Only my nephew
rides a road bike. I love riding their TWS, real fun. My brother just got
himself a sand rail, subie-turbo-powered so I'm looking forward to riding in
that early spring at Glamis.
I'm 64 now and still going strong mt. and road biking. I have a passion for
it. It's very directly related to where I go in my Van for camping trips. I
find myself doing more exploring in my van on remote dirt roads now than a
few years ago, and that is probably directly related to a couple things: my
age and doing more trips with people like Richard Jones who has done
'sploring in his van for decades (sorry 'bout busting you on your longevity,
Richard).

Headed out on a road tide in a little bit ... chilly here: 30 today .. at
least not 15.

Merry holidays, y'all.......bob