Hey Charles i’m coming 77 and am also on BP meds, no other problems except for the usual aches and pains due to age. Most mornings we’re out walking for an hour and a half, then after a light lunch if not shopping we’re in the garden tidying up and doing basic maintenance about the house or the vehicles.
For a couple of oldies we are quite healthy and intend to stay that way, we too avoid crowds, shop mainly by email but occasionally we have to visit local small shops, NEVER the supermarket. We are not now self isolating but are extra careful.
We have N95/FFP3 masks not the so called surgical ones, after we use them the are left (hung up in the porch) for any trace of virus to disappear, we have plenty.
As for the vaccine we’re not rushing to get it, we believe in the normal flu jab and have it every year, we are prepared to wait until the covid jab is fully tested and proved to be safe. I agree about the A model