This was my reaction too. School provides myriad things other than simply vocational training—that's a very significant sacrifice. It could well be that this was known, discussed, and the verdict came in that the sacrifice was worthwhile, but I hope any parents considering a similar path would consider the whole meal instead of merely one dish.
Another point: You can denigrate the liberal arts all you like ("wasting her time [...] taking yet another history class") and reject the argument that familiarity with them produces more well-rounded individuals, but a big portion of working in any knowledge-based profession will involve writing. I hope this young lady will also be able to have and take advantage of opportunities to become a better writer, because most of those opportunities before turning 18 happen in school.
Another point: You can denigrate the liberal arts all you like ("wasting her time [...] taking yet another history class") and reject the argument that familiarity with them produces more well-rounded individuals, but a big portion of working in any knowledge-based profession will involve writing. I hope this young lady will also be able to have and take advantage of opportunities to become a better writer, because most of those opportunities before turning 18 happen in school.