re: Is goal differential the first tie breaker in all forms of soccer?

For many of my youth tournaments, goals against was the first tiebreaker. Why? So teams wouldn't have incentive to pile on goals against horrible teams.

And for many, the scoring system was as follows. Teams could score a max of ten pts per game

6 pts for a win
3 pts for a tie
1 pt each for each goal up to 3
1 pt for a shutout

It was a great system for youth soccer.