It's all about attitude, skill, your ability to relate across the generations...this is the value that is timeless. The company will need young, middle, and old to be successful as that is the make up of their clients who pay the bills. Remember, even if older people do not consume technology as fast as younger people, they certainly buy it for their children and grandchildren and then their younger family members help them come up to speed. We cannot ever forget who pays our bills in the end...the clients, and our clients are diverse therefore we want to have a robust and diverse community of people that can bring the best ideas. More experience can bring perspective and design into products that can be invaluable and help create new products and services for an aging population. They can also help build leadership/non technical skills for the younger technicians that will need stewardship in maturing. That won't happen by itself...it does take a village spanning the ages otherwise you have an environment that looks like "the lord of the flies" and that's not good for anyone.
Good point by @VQnZJ3N-2Nruh.