I started teaching computer science and engineering classes in a large, public high school a few years ago. There is a significant fraction of students who regularly rely on ChatGPT (or similar tools) to do their work for them. Never mind the private group chats they use to share their work and tips for cheating. They talk about it openly with each other during class or in the hallways, on a regular basis.
I've had some students who cheated in similar fashion in my class. Whenever I notice it (so far), I take it seriously and go through the normal (and very time consuming) process to document and report it. Then the parents get involved.
About half the time, the parents challenge the report, based solely on their child's word. I try to make sure they understand the documented evidence, but in the end I always go with whatever the parent prefers, which is usually to rescind the report. Never mind the significant hassle and legal liability doing otherwise would create for myself and administration. I can make mistakes, and it's not always completely obvious whether something constitutes an academic integrity violation. I imagine that if I were the child's parent, I would want their teacher to listen to me and prioritize what I prefer for my own child. I'm not always happy about it, but I'm okay with that.
Because of all this, I can understand why I hear so many students regularly talking about cheating. It's probably because their teachers don't even try to detect or correct the issue. It's not worth the hassle to them, and its far, far easier to just let it go unaddressed. I think the result is that many high school students learn to normalize various degrees of cheating, cunning tactics, and learn to become rather convincing actors. It's only later in college or on the job that they learn about the real world consequences.