That's just my very personal grudge with organic/fair/vegan hipsters carrying their offspring around while a) insisting on exotic vacations as long as you "balance" b) driving 30+ year old dirty rape vans as surf shack.
Honest disclaimer: I fly within Europe a few times a year as per my employer's wish while also holding a company car. I am however aware of my footprint and hence didn't want to propagate that further via children.