Will they let someone in for free to just watch the child they brought, or do they have to pay for themselves to get in too? Do I have to pay for a ticket on line or can I do that when I get there?

They will let u go in and whatch your kid for free, you can get a ticket online, or also inside you can pay inside.

Yes they will let you in for free if you're just there to watch and you can pay online are when you get there

Yes you can eat h for free, they also sell parent passes to jump with kids

Yes if u just watch your child and not jump you don't have to pay