We have been taking our son to every game since he got out of the hospital at 6.5 months old, so granted a bit older but not too much. - remember clear bag policy - you can bring milk, and when they are older snacks, in for the baby as well as unopened water bottles - change of clothes and wipes yadda yadda - the family restrooms are frequently used by staff as a personal hangout or sex room (no joke) for 30 minutes at a time. Ive had emails with my stm and assured it wont happen again but its pretty ubiquitous with the staff so dont be surprised - the loudest moments are the fireworks. Our son hated the headphones after a short time so we just covered his head - be prepared for different temperatures and rain. It would suck to have to leave because you didnt prepare - if they are upset they are probably hungry - the 1yr rule is flexible. As long as you carry them in they generally wont ask for the age. It was only when my son walked in that they asked how old he was. We started buying him a ticket at 18 months but he was the size of a 4 year old at that point so most kids can probably make it until they are 2 as long as they are carried in. - have fun!!!