Yes! Spectators are encouraged.
PGA Jr. League is a family-friendly event. It is not uncommon to see 20+ spectators following an individual match. It's the perfect opportunity to spend time together as a family, outdoors and in a relaxed environment.
If you do attend a PGA Jr. League match, however, please be sure to abide by the Spectator guidelines. If you would like to be more involved, consider volunteering to score a match.