Reasons to join a mom's group:
Companionship
This was the number one reason for me. Especially if you are a first time mom, you're going to want to talk to someone during the day that can actually respond to you. Even if it's a lame response because they are as tired as you are. Probably even more so because they get where you’re at because they’re right there with you.
COMMISERATING
While this may just sound like complaining to your friends or maybe even your spouse, other new moms get it in a different way. They are probably feeling the same thing. No matter how many times you tell other people your new mom problems, they just won’t get it until they are in it. It can be damn hard to be a parent, especially early on. You’re not alone. Everyone else in the group is in it for a reason too. It can feel very validating when you need it most.
ANSWERS
From diapers to potty training, napping to sleep councilors (yes that’s a thing) to feedback on any thing that has been troubling you can and will get answered. "Any ideas on how to handle a picky eater?" Seriously, everyone does thing called being a mom for the first time and no one knows what they are doing. A mom’s group is the way we all teach, and help each other.
SHARED RESOURCES
Pediatricians, diaper services, hand-me down clothes, that one toy all the kids want to play with (It’s probably this as it was always the biggest hit from ages 6 months to walking in my group). I have never in my adult life been the beneficiary of so much good will and free stuff as I had when was a new mom. People have stuff and advice they want to share. Problems they have researched. They cannot wait to help you with yours. Just remember to pay it back in kind (you will though, don’t worry).
Playmates
Yes, early on the babies will all just be lying there in a circle staring up at you, maybe once in a while rolling into one another. Eventually though, they’re going to want to play with other kids. It will be in really short doses at first, and mostly just parallel play, but it will help socialize them. You want kids that are socialized. You don’t want to have the kid that cannot handle being around other children and when other parents see you coming to the playground they all quickly gather their things and leave. (Don’t worry, that too shall pass!)