This is a view that actually sometimes prevents older people from managing it in market. Because of how fast technology moves, much of your experience from 10+ years ago isn't very relevant today, so if you expect a higher salary because of it you will be disappointed. It's important to be realistic and accept that if you've been working since your early 20s, you accumulate experience that might result in a higher salary, but only until you reach your late 30s. At that point you just compete in a market with other experienced people and your value (based on experience) doesn't increase much. You can still increase your value to an employer by acquiring a skill that is in high demand, but you're not more qualified than someone less experienced who has that skill.