Gary, at our age …..
It still is up to us.
Once you have got the first tiny seed of aiki, it will grow in you. You will know it right away. Of course, you are free to go wherever you want, any floor of the house, even outside the house.
I have had some touches over the years....played with John Clodig for over 35 years, with Walter Muryasz for as long, touched most of the old dogs (including Tohei Sensei in the 70's), have had Dan Harden in my home 6 times, Howard Popkin once, spent a couple of sessions with Mike Sigman back some time ago, played with a couple of good Chinese folks, with some Karate and Escrima folks as well as talked with a lot of others......so don't don't worry about me, though I thank you for your concern and thoughtfulness.....