Obviously one should try to avoid poverty, debts and early death. But if you are truly dedicated to your creative field, then sure, it's clearly the correct choice. Having a family, buying a house and other middle-class living standards are choices, not necessities. If someone isn't willing to make some sacrifices for their art, perhaps they aren't meant to be great at it in the first place.

Otherwise, when will you pursue your art? In the next life?