Honestly, I've taught both. My favorite is the one-on-one one, the first thing I can make sure is that more than 90% of the students who come to the class are willing to listen, after all, they paid for it. But at school, I beg them to listen well, and 50% of those who are willing to learn Xi are considered to burn high incense. You can never teach a student who doesn't want to listen to a class, just like you can't wake up a person who is pretending to be asleep!
