Does everybody have to sign a waiver ?And why do we have to sign a waiver??

Every escape room in the USA requires a waiver. It's normal practice. You are in a physical environment with numerous opportunities to file a ridiculous lawsuit against them. For example if you slip and fall.

You must, yes. It's pretty standard to cover the company if, say, someone has an undiagnosed heart condition and gets startled to the point they are adversely effected. That would not be the company nor their performers' fault.

To make sure you understand the rules.

But y do u have to sign it?

Yes. And you will do it electronically when you arrive