If we brought grandson and we don't ride do we have to pay

No, there are 2 different midways as well. There are rides for little kids and rides for big kids. If u did decide to ride with on some things... Like the bumper boats or go carts you can buy a chaperone pass(i think thats what its called) its really cheap and probably worth it especially if you are only bringing the 1 child. If you arent commited to going today... I would wait 5 more days(St Pattys Day) cuz they are offering 5$ off wrist bands

No you can get companion pass

No