I disagree Frankie. I don't think a society of spoiled wankers is created at junior football and kids, especially those with low confidence etc benefit from positive encouragement. I think the negative crap on sidelines is a far bigger problem, not just for sport but for society in general. It hardly helps increase volunteer numbers to ref etc as why the f**k would you bother giving up your time to be yelled at by people who in my experience often don't know the basic rules.
Does he want everyone to be silent the whole game? What if a kid turns their opponent and plays a good smart ball? Silence?
Also, some kids do just play for fun and that shouldn't be a problem.