Florida boy, 6, drowns in Carnival cruise ship pool

[No Vested Interest]

90. The buses were not handicap accessible in the US sense of definition, but

between driver and me, and spouse's own control, he could get on. Often the driver had a stepstool to help on that big first step. Spouse was mostly given the front seat on buses. Vans were a somewhat easier, occasional cars more so.
There were many places we could not see as completely as we would have otherwise. Ex. - Mt. St. Michel, Carcaisson. Both too hilly and with uneven streets made of rocks, so I would find a place for spouse to sit - cafe, etc. - while I looked around the area at the base. Spouse was a good sport about it all, which helps.

Spouse & I took a few Elderhostel (now RS) trips, mostly in US but one to Costa Rica. - They are great, very well run. I've done two on my own in US - St. Augustine, FL and New Harmony IN. RS is a group in which one can feel very comfortable being a single traveler, though I've slowed down a bit in my desire to travel alone in the last year.

Your plans in Europe sound terrific. As a senior, I would want to go abroad now only if one of my (adult) children was available to accompany me.