jhp,
Yes, I know I am lucky to be mobile for now. My husband and I have both experienced minor mobility impairments, but for now, we're good to go. And drive (he always insists on driving when we're on holiday, but I love driving too.)
And I fully expect that some time in the future, if we are lucky and healthy enough to travel at all, that we will find cruising very convenient and relaxing.
Oh, and I'm not ashamed of my age. I'm 56. My husband will be 61 next month. Maybe some of the pictures I will post shortly will tell the tale--my avatar picture is from 2000!
(edited: after saying the above, I realized that my signature is wrong--it was 2000 that we were first in FP--will fix.)