My 5-month-old fusses when we don't bring her out so we we end up going to places like the mall, the park, and the zoo everyday. Even the supermarket seems to delight her. I wonder though - is there such a thing as too much simulation for a young baby?

Kids nowadays are very inquisitive and it's a good sign. They learn things fast. It doesn't mean that when they fuss and u need to being them out. Don't make it a habit else you are the one who will suffer in the end. Bringing them occasionally is good enough. Engage thwm in their toys or something that they might fancy at home is better than outside.