How much do YOU get from your co-workers and boss around the holiday season?
You are paid by your company for doing the work you are hired to do. Perks and tips, etc. are nice but are NOT required. Same with teachers. The schools charge parents according to their ability for tuition. The school uses this money to fund the teacher SALARIES. Parental tips are nice but can’t be EXPECTED or DEMANDED by any rational teacher.
JC’s and waiters PRIMARY payment and income is NOT through their employer, rather it’s through tips. That’s why parents pay the tips.