Here are the main reasons why people hate grammar:
Let’s address these points one by one.
There’s some truth to this first objection. There are times that you don’t want any grammar. If you’re doing "hit and run" language learning -- learning enough of a language to feel comfortable as a tourist, grammar will definitely slow you down. You want to use the "listen and repeat" method to learn those vital polite phrases. This method can bring you to a respectable conversational level as well. The folks at Berlitz and Sybervision have shown that, given time and enough exposure to a language, you can get some very impressive results.
That’s correct. Children are the ultimate “listen-and-repeat” learners. However, you aren’t five years old any more. Learning a language as a child is very different from learning a second language after your first language has become “burned in.” At that stage in your life, grammar, if presented properly, becomes a terrific learning tool.