Low prices don't attract more students.
They attract the wrong students.
The instinct is to price low to attract students — ‘I'll build an audience first and raise prices later.’ The result is a school that fills with students who are sensitive to price and insensitive to quality. More importantly: a school priced too low is not sustainable. A founder who charges €20 per session is earning less per hour than they would teaching in a state school, without the pension, the sick pay, or the holidays. Price signals quality.