You're not literally six inches from them.
You're not right next to them all four hours.
You have plexiglass between you (no?).
You have air flow whisking away all the breaths and such.
I realize you're a few years older than me, but I feel okay in a cart. And I will still get out and walk a good bit, and if we're parked, I get out.
But, walking is not a bad choice at all.
I've only been out a few times, but I've walked and really enjoyed it. Of course I had to take a bunch of unnecessary items out of my bag to make it more manageable.
Agree with the hand sanitizer comment - I have a travel size that has a carabiner clip, so I can us it after every hole if I start to OCD; I do wish ball washers were available, but that will have to wait