Is it true baby younger than 3 months cannot bring the baby out? I was scolded by my mom for bring LO out to shopping mall. Because after I return home my LO keep crying and it become everyday thing. And she assume that is because I bring her out.

It's the overstimulation which gets the baby crying. Keep the routine even if you are outside with baby. Time for naptime, coax him to sleep before placing into a stroller to allow them continue their nap. Mealtime milktime all must stick to routine. There isn't a such rule or saying that babies below 3 months cannot go out. Babies need fresh air and sunlight too. Mummies need their sanity too!!