that definition of finishing school would be the most ridiculous definition of seminary i ever heard of.
the aspects of self development that begin in sem are intended to continue throughout life. that is a Jewish concept–that we are continually growing and becoming better. the idea of finishing schools is to produce complete products, that young ladies become “finished” in matters of etiquette etc. that is not the point at all.
the only resemblance i found to sem was that part about finances 🙂