Because I don't like fast food so let's eat at home.那里错了?

Because I don't like fast food so let's eat at home.那里错了?
Because I don't like fast food so let's eat at home.那里错了?

Because I don't like fast food so let's eat at home.那里错了?
去掉because
because 跟 so 不能同时用在一个句子中

because用于陈述原因时一般放在句尾，英语里通常喜欢将重要的内容放在前面。