Sounds like a generational thing.
I grew up texting. But in the 90s any profanity filters could just be turned off in settings.
After reading through the threat here it seems more like a cultural thing. The US has quite a lot of filters for profanity. I remember from my youth that in 2009 Eminem was a guest in a Germany TV show and very happy to swear as much as possible without being censored. https://www.youtube.com/shorts/2OC-yKZ5Yag
You had profanity filters for SMS?
People are getting used to censor themselves in order not to be reported, banned, or «hurt » other sensibilities. The words « rape » couldn’t be written in instagram for example, what a great way to deal with such a serious issue. Mainly an American thing spreading away from young people if you ask me. Sorry America, just being honest here.