For example, people tend to respect you more. Crews like to work for older producers because they don't put in a 12-hour day unless it's absolutely necessary. A friend of mine enjoys crew work with a senior producer because he calls it quits after six hours on the job. Older people also put more emphasis on the quality of food. So meal breaks on location are seldom neglected.
Lunch is hot, on time, and includes dessert.
This makes everyone happy - clients, crew, and actors alike. Another advantage to being older is that you've already seen all the good shows on television and have all the creative material you'll ever need. But you can still draw upon that creative genius to give you a kick in the pants. Another advantage is that, as you get older, there are many things you just instinctively know. You know when people are stretching the truth.