feeding

This was a huge debate between my aunt and my self on what age shud a baby be getting solids this isnt my first child this is my third So the arguement started when she asked my how old my baby is and if she started eating where by my answer was no as my baby is only 3 months old So she started going off at me saying she fed all her kids and she has 5 when they were 3 months now I know the clinics and docters have explained that babies can only eat solids from 6 months as their tummy r not ready for it Her answer was DO NOT LISTEN TO THE NURSES AND THE DOCTERS AT THE HOSPITAL AND CLINICS U SHUD START GIVING THE BABY FOOD NOW I just looked at her changed the subject and walked away Was I right in saying so Or was I being rude to her when I said no