I used to work in grassroots football for the club my Son played for and i've seen it myself, the abuse aimed at refs from coaches and parents is shocking. I've even reffed a few games myself and it was non stop moaning and it put me off volunteering to do more games.
The worst case i came across was a young lad of about 14 reffing an under 8's game and getting loads of abuse from the opposition coach who had to be pulled to one side by our coaches and told to pack it in. Not sure that lad ever reffed again and who could blame him?
What do we do to improve the standard? Do you get ex pro's taking it up when they finish their career? That may help in the pro game but what happens at grassroots level?