but often people don't go shopping because they need something

问题描述:

but often people don't go shopping because they need something
如何翻译?“但是经常人们不去购物因为他们需要一些东西”这个翻译好像有点问题.

意思就是:但是很多时候,人们去购物不是因为他们-需要-某件东西...
后面还应该有点句子,比如‘...而是因为他们享受逛街的过程’.