What do you think of famous people that majored in theater?

Do you think that when they were majoring in theater that friends, family members were telling them it was a waste of time? Tina Fey, Denzel Washington, Rachel McAdams, Bridget Regan, and others majored in theater/drama in college. I wonder if other people in college were telling them it was a waste of time and money and to major in something more "realistic."