Just an aside, I went to my daughters interview for highschool with her recently. During the very intense interview he noted on her application that she is one belt from black belt in tkd. This drew more attention than any of her other achievments. I spoke to the principal after the interview regarding this and he said most schools regard having a black belt very highly, and said that alone would go a long way toward her application being successful. It got me thinking that mcdojos handing out black belts easily serve a vital role for parents wanting to add some "fluff" to their child's resume.
I agree with you there. While not universal, there are certainly many parents who seem to have a check list; gymnastics, violin, piano lessons, black belt in TKD (or any other art), etc. They check off each activity and are genuinely proud that they have given their child so much enrichment. While I think that there is a part of it that is good; the child gets exposure to the martial arts, it also usually means that after the child earns his/her black belt, they are quitting and miss the concept that the black belt is really just a beginning.