Playing against much better golfers in tournaments is literally the purpose of handicaps.
Only 14% of US golfers carry a handicap. Pretty much country club members. Maybe some leagues.
The average of those for men is about a 17HC.
People who carry handicaps are typically more serious than the average golfer.
If golfers all kept handicaps, the average would be around 30.
But I think for PGA purposes, they should stick with people between a 15 and 25. Too high and pace of play goes to shit while bubba looks for his ball again.
Remember, an 18 HC will shoot a 90 on a par 72. The average recreational golfer shoots over 100. (which is at least a 28). I finally shot under 100 enough to be a 23. I shoot around 95 a lot. 90 on a good day. 105 on a bad day.
115 if watching Bobcat swing.