to each their own; people differ in tastes or opinions.
好き嫌いは人それぞれだから気にしないで。
Don't worry—likes and dislikes vary from person to person.
その映画の評価は人それぞれだ。
Opinions about that movie differ from person to person.
人それぞれのペースで進めばいいよ。
It's fine to proceed at your own pace.