For me, it's about deferring to the parent rather than having any actual objection to it. It's their job to decide how their child is introduced into the world. Including how swearing gets contextualized for them. It's a caveat to what I said only as far as its a courtesy to avoid going down the path of telling parents how to raise their kids (or putting their kids into an environment they'd object to). I'm not interested in stepping on that rat's nest, and I wouldn't be rushing to put my pre-teen in a cussy environment either. (The "for the children" censorship/restrictions is a different tangent I have things to say about too, but was trying to sidestep that because it diluted from the point in my previous post.)