Should 3 months old drink water?

Hi mummy i feel it depend on yourself. Yes everyone told me shouldn't feed baby water when they are below 6 months. I feed my baby water and I just ignore the pd advice. Reason very simple when we're young do we have such term? We as a human being need water and we won't feel good without water so do our baby. This is what I personally feel. Ppl may disagree with me but my girl is healthy and growing up well. She's on bm and bm water content is high but I still give. Not alot of cos.