When starting a new park on rollercoaster tycoon 2 it will not let me charge admission for rides it says free?

Question

the free is greyed out and will not let me change it

Answer 1

It depends on the scenario. Some levels are designed to be that way (so its harder/easier depending on the goals of the level). Try other levels if you don't like it that way. Not all of them should be like that.

If you like a particular park you can always change that in the 'Scenario Editor'.