Fred Holland was 5 years old when his family moved to Boulder City. He’s been there ever since. Holland, who turns 100 on Tuesday, still lives on his own, drives, cooks his own meals, keeps busy with the stock market and property investments, and enjoys meeting friends for lunch at the Senior Center of Boulder City. He calls it the high point of his day. “They treat me well there,” he said. “I enjoy meeting up with friends. The downside is that most of them are snowbirds, which means they’ll be leaving for their other homes real soon.” And yes, he’s the oldest of the group. “They’re young, probably in their mid-80s,” he said. “After all, it is the senior center.” He laughed when asked how he feels about turning 100 and said, “It’s been a long time coming. I didn’t have plans of getting here (turning 100). So far, I’ve been very lucky, health-wise. My dad lived to be 75, and my mom was 84.…