I don't think there's a drawback so much as the fact that it took me a long time to realize that it was in fact possible, which sounds silly, I know, but it just didn't come into my head.

Honestly the main drawback is that it means I will have to change my available sheet at work again, but my current boss is very nice so this shouldn't be a problem.

Plus, if I take both, it will make it easier to justify purchasing myself a proper pair of dancing shoes. They'll get plenty of use! And I'm sure the folk dances will come in handy for a story sometime.