A proverb meaning you can't dispute age — older people or experience carry weight, and youth often can't compete with it.
若い者がいくら技術を学んでも、年は争えない場面もある。
No matter how much the young learn, there are situations where age wins out.
彼は長年の経験があるから、年は争えないとみんな言っていた。
Everyone said you can't argue with his years of experience.
若さには勢いがあるが、年は争えないとも言える。
Youth has momentum, but you could also say age cannot be contested.