I know a couple parents who had their youngsters start off with putting, and chipping games around the house. This would seem to me to work well during this virus thing, untill more thorough lessons can be obtained.
This short game stuff was was to keep their youngster's interest levels high. With more, early fun involved, the youngster will most likely want to hit longer shots. At that point, maybe a back yard, or in house hitting net can be utilized.
I must lead a "sheltered" golf life, as I don't think I've ever been on a course that didn't specifically allow trollies.
I played a course, or two that didn't allow walking, so in retrospect I guess that would include trollies too. So maybe I have.
I suppose loss of revenue for a no added cart fee is probably the biggest reason. Chalk it up to greed I guess.
My home course is going with one person to a cart right now. $35 in the AM, $25 in the PM, but those prices include walkers/trollies too. Golfer's choice.