Because now the children start to learn English at an early age.

问题描述:

Because now the children start to learn English at an early age.

因为现在的孩子在年纪很小时就开始学习英语

因为现在孩子们从很小的年龄就开始学英语

因为现在的小孩们很早就开始学英语.

因为现在的儿童很早(年纪很小)的时候就开始学习英语了。
本来的句子不太通顺,可以改成
Children are now starting to learn English at an earlier age. (因为是比较型)