It is fine to take your baby out once you are feeling up to it. We were in HK when my baby was 3 months old and I rarly saw any babies except in the weekend, and virtually never ever saw young babies, we got LOTS of attention. I think it is because people are always drawn to young babies, and in HK you hardly ever see them. I am not sure if it is cultural or if it is because people have to back to work so early.