Originally Posted by Misterbill
How can you conclude that the parents are stupid?
We don't know, maybe their tennis expense is less than 1% of annual income or a much smaller percentage of net worth. Meanwhile, it wouldn't surprise me if lots of parents right here on this Board are paying upwards of 5-10% of annual income on their kids' tennis.
Looking at nominal amounts rather than percentages in any business or family isn't the best way to take risk or maximize material enjoyment/the return on investment.
5-10%? 30% after tax on my son.