When products are built by young people in their 20s and 30s, it is very likely they do not fully understand the needs of older people. Imagine if you are losing your eyesight or cannot drive anymore, losing abilities that you've relied on your whole life? The way you treat young kids, vs. adults, vs. older people is very different, and Melinda thinks that "white guys in their 20s" might not have the empathy required to work on these products, nor a good understand of the needs.