Also embedded software, aerospace software, medical devices. Those job listings always ask for at least 5 years of experience, or 10 - and that's not for a senior position at all.
I work in embedded. Unless it's for some god-awful DOD job, they don't put a premium on experience beyond five years. Even then, they don't put that much of a value on anyone in the non-managerial ranks experience beyond 10 years.
For front-end work maybe, lower down the stack, five years might not be enough to handle the more important things like the corporate RDBMS. A few grey hairs to oversee the youngsters is quite the norm the closer you get to the real value and money of organisations.