Is there like a way you can take your kid to the stadium and play some catch? Or is it locked.

If u tailgate you can PLAY catch

No its like a pro stadium gates to get in during game time. So no you cant play catch

You can't get onto the field

On the field? You cannot get on the field.

No. It's not a public park.

Sorry but it's always locked up.

It is all locked up with strict security. Found that out the hard way. Hope this helps.