[paulat]

When these role-playing games are entirely voluntary, and carefully designed, they can be interesting and useful.

Paid by tax-payers?

[CatoRenasci]

Anything the state pays for is not entirely voluntary....

That said, if a bunch of students at a publicly funded university want to engage in one of these things, I suppose I don't have any real objection as they don't use any more university resources than any other legitimate activity. Lots of things done at universities are silly or stupid, some of them turn out to have been worthwhile, others not. That's the marketplace of ideas.