This has been a “startling new trend” for more than 20 years.
I am horrified, but not surprised.
This is what happens when the culture actively denigrates and villifies the Christian worldview.
If your existance is only here and now, and is only material, then why not do what you want to and with your body?
I knew a couple of girls who did this when I was in high school, I graduated in ‘58.
I got cut from high school basketball...
25 years ago, I had a girlfriend who did this to herself. She had an abusive father. I, quite literally, put him through a wall once after he backhanded her in front of me. I had just started weightlifting and was already a pretty beefy boy, even at the ripe old age of 15.