Nomads even before the Spen Cama money prepared players for high level League cricket. I was comfortably the worst player in the team and yet it improved me. I have been playing village cricket since 1989 so it certainly didn't put me off.
I once went on one of those "Red Letter Days" experience things which was a day with Mike Gatting at Lords. At the time I was a player in the Sunday Seconds. When we were discussing our 'codes' over a lunchtime pint and burger in the Tavern I mentioned that most in our team walked, all umpired with varying degrees of competence, that fielding mistakes were never deliberately mentioned or criticised and that the batting order revolved around everyone getting a game. He looked horrified.
I know there have been England (and Sussex) players who have had depression - a true mental illness - but I'm not sure why the bowler of a dropped chance giving you stick is worse than 30,000 drunk, baying Aussies or a packed Wanderers giving you exactly the same advice. Especially when you're being handsomely rewarded.
Just because it didn't harm you doesn't mean anything does it? . When I played I did not accept anyone shouting at me and as a parent I would object violently if my child aged 13 was shouted at. Shouting and swearing when mistakes are made is a sure way of ensuring a no risk approach; Is that what you want?
More fool Mike Gatting for being horrified. But then what do you expect from someone who toured South Africa when the whole decent world was boycotting it. I don't suppose he understood that either