I always offered an alternative time when I could but being fully booked it wasn't always possible.
Unfortunately, I think some people consider tutors to be at the bottom of the pile when it comes to education.
There's a lot more to it than parents often think.
I spent hundreds of pounds on equipment and books, there's wear and tear on your home if the come to you, the cost of professional fees and insurance.
AND the time before the lesson when you're preparing.
The fee you pay covers maybe 30 mins of prep for a child - planning, photocopying material (costs incurred there), keeping records, etc.
No tutor ( a good one!) just opens a book or provides a worksheet the minute your child arrives at the door.
This is why, if you cancel with no notice, the tutor could have already spent 30 mins preparing your child's lesson.
My fees were half a term paid in advance.
Very occasionally, I'd 'let off' a reliable parent if there was some bad family emergency and take the hit. But usually they insisted I was paid.