My favorite spectator sport would have to be tennis, I think.  You could do so many different things with it.  Like play-offs for a small group of people, individual tournaments,
assitant
I would say either soccer or an aerial dogfight.  But what would the people at this event like?
assistant
what are some fun spectator sports?
user
Hmm, soccer is pretty popular. That’s a type of football played in most countries in the world. It’s a big crowd-pleaser, especially with the World Cup tournament in the summer.  There are also races and car shows, boat shows, motorcycle shows, aerial dogfights, ice hockey, a lot of sport fishing tournaments...  And of course a ton
assistant
Great ideas. What is an aerial dogfight?
user
Oh, that’s just a fight in the air, kind of like in Star Wars.  I guess you could try to fly planes up there and shoot at each other.
assistant
Okay, any other ideas?
user
Well, there are also driving races, ice-skating shows, gymnastics, all sorts of band and orchestra concerts... I don’t know how many of these would be appropriate for a kids event, but there’s a whole bunch more ideas if you like.
assistant
Cool, which is your favorite?
user