Bogey,
No doubt everyone playing stroke play contributes to it in the USA. I recall being paired with an older gentleman in Scotland about 40 years ago and realizing they play so fast because if you are out of a hole, you just pick up. In some cases, if he needed to make a good bunker shot to tie me on a hole, and missed it, he would pick up figuring the challenge on that shot was to make the good play. He ignored the very small possibility that he would hole out the next one, even felt he wouldn't have deserved it in some ways.
As to participation trophy's, that is probably a bit strong, but years ago, when my kids were in school and they were promoting "whole learning" in Texas, one of my few bits of parental protest involved that, and their phrase of making school an "achievable challenge for all" which in my mind, meant pandering to the lowest skill kids, at the expense of the brighter ones. The relevant upshot is that somewhere, I wrote an article based on that phrase, in sort of a snarky tone, I am sure. Shorter version, I suppose pandering to the lowest common denominator/highest handicap probably isn't for every course, but it should be for a lot of public courses that are, by definition, open to all.
And, some things can be done without affecting challenge for the good players. That was sort of the genesis of the 1950-2000 design "rule" that hazards should only be placed where they are in play for better players. And, I follow that, often recommending tree removal, wider fw, no hazards at any location beyond about 180 from the green, figuring anyone who hit that shot took themselves out of reaching the green in the first place.
Or, as many have opined, the gca does want to separate the better player in any golf match, but there is no real reason on any one hole to separate them by more than one stroke, certainly not in match play, and even less so in stroke play.
If you go through the archives, you can find my story about the mafia boss, shot down on a Chicago course, with the assassin hired by his playing partners, who told the gunman to shoot the first guy on the tee. Reportedly, his last probably laughing hilariously words were, "I can't believe I won that hole with a 9!"