I actually don't see a problem with having some alcoholic beverages for the parents at a children's party. I would think most parents are responsible enough to not take the offer of a beer as an invitation to get blind stinking drunk while their kids set the park on fire or attack the geese with plastic forks.
"DEAR PARTY PLANNER: I see nothing positive to be gained by a group of parents drinking alcohol at a children's party. Alcohol dulls the senses, and besides, the purpose of the party is to see that the children have a good time. Rather than drinking and socializing, the parents should be concentrating on the kids, making sure they are entertained and closely supervised -- particularly in an outdoor setting that may not be familiar to everyone."
But that's just me. And I can't imagine Foodgoat not offering some beer or wine to the grownups at any of GoatSpawn's parties. What do you think?