Don't ban the circus. Ban the animals within the circus. Colour code the tickets for the children to be grouped into groups. Then make this more hands on for the children. Teach the children an easy acrobatic act they can perform. Have the children choose who they would love to put a clown face on. Children would have so much fun putting a clown face on daddy or mommy, etc. Still have the acrobatic and clown acts. Have magic acts and have the magicians teach the children some tricks. If they choose to have animals in the acts, have agility races of dogs.
Me too Steeltown, but as far as dog agility races go, I would accept that. As those animals aren't being treated in a nasty way and many dogs do well at this and need to run off some energy.
I don't believe in zoos either unless they are injured and wouldn't be able to survive in the wild. Or they are trying to save them from extinction. Leave animals in the wild where they belong.