No one is afraid of older people. they are afraid of not having the upper hand. This business speak about culture is lame. Say what you mean. Don't say culture when you mean power. Yes, the problem is that more experienced, wiser, and older people are scary and will take control of your company if you hire them and will ignore all your power games. They are not going to respect your "culture" (power). Scary stuff. In reality, the powerful don't work for the weak so you don't have to worry about it.