Price fixing is a form of collusion, and it’s a crime - even if the sellers can claim they didn’t all sit down in a room together.

Phoenix apartments had an inflated housing market that was caused by price fixing. The property management used software to set rental prices, and the terms of service required them to use the prices suggested. None of the managers individually spoke to each other, but the software algorithmically inflated rent based on what other properties could get away with charging.

https://www.azag.gov/press-release/arizona-attorney-general-announces-1-million-settlement-weidner-property-management

From what I can tell, the ‘age’ part is misdirection. They want to restrict computer use to the “good” people, to make it “safer”.

Using age restrictions first allows legislation to be passed “for the children” using the idea of potential harm to theoretical children. However, in practice, legislators expect the implementation of the age check to be capable of checking anything else they want to about your identity, as a prerequisite for access. Probably using a combination of face scans and ID scans.