The only one I can think of is casting a part in a movie. You wouldn't cast Sean Connery to play the part of Mark Zuckerberg in The Social Network, for example

The only one I can think of is casting a part in a movie. You wouldn't cast Sean Connery to play the part of Mark Zuckerberg in The Social Network, for example. But I believe there is already exceptions in the law for things like films. And churches typically hire a younger person to be a youth minister, as the kids could relate to them better. Again, not sure about the legality of this though.