More available to adults - from sellers who now have a financial incentive to not sell to kids, namely the risk of losing the license for those legal adult sales.
Just like booze in the 1950’s and 1960’s.. The more available the easier to get.. Buyers buy and give or sell to kids..
“Just like booze in the 1950’s and 1960’s..”
Not just like - the legal status remained the same.
Kids have reported since well before any state legalized that they could get pot almost as easily as cigarettes and beer, although the latter are much more widely used among adults. This makes sense because only sellers of legal drugs have an incentive to card.