Don't want to be drawn into a debate but:
- I know what the law says, my argument was that for refs to enforce that rule sensibly at a minimum it should be both foul and abusive. Check the rest of the footballing world for application
- I played in Dunedin during a season when all swearing on the pitch was banned. Straight red for exclaiming "f**k" to yourself if you misplaced a pass or someone yelling at a team mate "f**king mark up". No exceptions at all (believe it was 02/03). All of those suspensions were confirmed - as far as I am concerned it does not validate the ridiculous decisions made by referees or the administration behind them. Moral of the story, the authorities are not always right and it goes without saying the rule didn't last (players, fans and coaches all universally objected).
I remember that season, one poor bloke got hacked from, exclaimed f**k, but not overly loudly, and the ref sent off and the hatchet merchant got away with a hideous tackle.
On the kids thing, senior football is for adults, if you take your kids along to an adult event don't expect adults to pander to them.
I think we all agree there is a line, I guess the difficult thing for refs is where to draw that line