<p>There are lots of reasons why people make the repeating choice, clearly it could be debated for a hundred years or more.
However, in this particular case, you have a kid who has NO reason, other than wanting to spend an extra year in high school. An expensive whim, in my opinion, to spend an extra €50,000 for the heck of it.
Daren, be careful what you wish for–more high school is not something many people say they wish they had. College, however, is another story.</p>