> What if they're experiencing mental health issues?

The people I know that do this use the time and money for a full time vacation as they travel the world. I am not sure public or private healthcare should fund people's (mental health) vacations.

Well, a vacation probably isn't hurting their mental health. I assume it's short term disability insurance that's picking up that bill. I wonder who actually ends up working more days - a French worker who gets all kinds of leave by law, or an American who maxes out their private insurance benefits? I really couldn't say, but I just can't get all that angry at a worker getting the benefit here.