Are there any flight simulators here. If yes how old do you have to be to enter

Yes, there are. There is no age restriction, but children must be a certain height. More info on requirements for each simulator can be found on their website.

Yes, they have 2 and IT cost 11 usd.

Yes there are, please refer to the following Page for further info. https://www.midway.org/exhibits-activities/activities/flight-simulators/