I tested the market on new students first and it was because they couldn’t afford the fee for 45mins a week that they switched to fortnightly, not the length. I had to offer them the lower price of 30mins before they would come weekly. I also increased my prices only to new students and none of them flinched so I can put fees up for the old students too now. I have several old students at higher levels on 45 mins because they want that regardless of cost and one on an hour a week, which is great because it enables me to cover scales, studies, pieces and anything else, which 30mins doesn’t do. But to answer the original question, yes 45 mins works for me and at least I get paid for the extra 15m.
On the whole, the attendance rate is shocking. This is their hobby, so any crisis and I’m at the end of their list. The Chinese students have the highest attendance rate and standards. They take it seriously and really put in the work.