Age discrimination is illegal. There aren’t any test cases over equal pay for work of equal value but there should be a transparent and easy to understand remuneration policy.
I tell juniors that if they help me to “fit in” (pre Covid) an additional treatment because they help with efficient turnaround and I don’t feel stressed with overwork, then they’ve earned their keep. I keep them focussed on how they add value.
when they are ready to do treatments I monitor their earnings.. However, i point out that whilst I am spending time supervising, mentoring and generally supporting them to improve I am not earning myself and so my lost earnings has to be factored in. I do sometimes have to give refunds or generally take a financial hit with mistakes made by juniors - everything from incorrect change, to misplaced decimals on the card machine, to making mistakes over prices and product sizes - or forgetting to charge for service upsells. I handle this discreetly so the YP might not be aware that I’m making less profit than she thinks.
All staff are paid an average of a percentage of their earnings. I double check their hourly pay/total earnings against income. A team player is a team player and deserves to be paid the same.