Only one reason someone would push this...

Either:

• "Parents" who are already molesting their kids.

Or:

• "Parents" who want to molest their kids...
  (...but they fear they cannot get away with molesting them and that the kids will say something to someone that will get the parents sent to prison, so they are getting the kids used to seeing and interacting with degeneracy in an open and public place completely supported by adults, businesses and the government itself who are telling the kids that everything going on is good and normal so that they will begin to see being molested as something normal and good so that the "parents" can then finally molest them without fear as the kid has been brainwashed to think it is all normal and good and not as something bad and evil that they should be telling someone about it happening to them.)

Show up. Don't let it happen. Make it cost them something.

It's a symptom. In any given society when that sort of stuff is openly going on and is also promoted by authorities you can be sure the civilizational collapse is around the corner. I mean, society relies on heterosexual couples to perpetuate itself, wtf is the society doing by promoting/supporting/enabling this? Committing suicide that's what because what else?