They also had the option of expelling kids who acted up so the trouble makers ended up in public schools maybe that is why some think Catholic kids were trouble makers but the majority weren't
I know all about the troublemakers that were kicked out of Catholic school, winding up at our public school.
We took the cool ones into our group, and schooled them in how to not get caught so easily.
One of them, also got kicked out of our public school. My father was always telling me to not hang out with him, but he was always doing fun risky stuff.
I never got kicked out of any school, but I had a few run ins with school administrators. Paddled for ditching to go surfing, and fist fights were my problem areas. Still graduated on time with honors.
I worked some part time from the start of HS, so I had money of my own, to spend in the cafeteria or off campus.
Our public HS observed meatless Fridays, since I suppose they wanted to make it easy for observant Catholic kids to get along.