Many students go to Israel for summer learning or touring programs after 10th grade, and then there are expensive sleep away or touring camps in America (like Achva East/West). They are often paid for by grandparents as a “workaround” to tuition.
But the grandparents likely won’t pay for tuition anyway, so all it does is keep kids out of these programs.
On the other hand, I think it sends a message that tuition really must be a priority. At that age, kids can often get jobs in camp, so parents wouldn’t have to pay for their kids summer “babysitting” needs.