to each his own; people differ; different people (have different likes)
考え方は人其々で違う。
Ways of thinking differ from person to person.
幸せの形は人其々だと思う。
I think the shape of happiness differs for each person.
価値観は人其々なのだから他人を批判すべきではない。
Since values differ from person to person, we shouldn't criticize others.