[hadlock]

People under 35 change on average every 20 months in the US. People who are focused on salary and career achievement. There are a lot of people who get a job and blank out on cruise control and wake up 10-15 years later and wonder why everyone else is making more than them. But the talented people are usually switching every 2-3 years. It's not uncommon for someone to spend an extra year at a company to have a child, plan a marriage.