expression
what is learned in the cradle is carried to the tomb
Proverb meaning that habits or skills acquired in youth persist into old age, just as a sparrow never forgets its hopping dance.
祖父は今でも毎朝ラジオ体操を欠かさない。雀百まで踊り忘れずだね。
My grandfather still does radio calisthenics every morning without fail. Old habits die hard, as they say.
A traditional Japanese proverb. The literal meaning is 'a sparrow doesn't forget its dance even at a hundred (years old),' referring to the sparrow's characteristic hopping. The exact origin is uncertain.