Many parents struggle with letting their children become more independent, while many children remain overly dependent on their parents.
こんにちは！
ご質問ありがとうございます。
ご質問について、いくつか言い方が考えられますが、例えば、
Many parents struggle with letting their children become more independent, while many children remain overly dependent on their parents.
とすると、『[親離れ、子離れ](https://eikaiwa.dmm.com/uknow/questions/26425/)できていない親子が多い』となります。
参考になれば幸いです。
There are a lot of kids and parents who can't seem to let go of each other.
There are so many people out there who cannot live independently of their parents or children.
この場合、次のような言い方ができますよ。
ーThere are a lot of kids and parents who can't seem to let go of each other.
「お互いに離れられない親子が多い」＝「親離れ、子離れできない親子が多い」
ーThere are so many people out there who cannot live independently of their parents or children.
「親や子から自立して暮らすことができない人たちが多い」＝「親離れ、子離れできない親子が多い」
independently「自立して・影響を受けないで」
ご参考まで！
日本 
カナダ 
