Perhaps a cruise would be a good idea.
We went on our first one last year and they organise meetings for single people to get together.
There is a huger percentage of older people on cruises and there is medical assistance if needed on board.
Excursions are arranged if you are interested.
You can get good deals on the cruise line if booking last minute so this could work out well if he wants to go soon.
Shop around on the Internet for a deal.
Heated Brush recommendation,please.