How young is too young for baby groups?

My babe is 2.5 months old and I'm wondering if she's too young for us to try out some of the baby group type events in and around the city. I know that there are days and times specifically for babies aged 0-12 months but I can't help but feel it might be pointless and/or awkward to attend considering she'll either be in my arms or laying on a mat. I guess I'm just curious as to when other parents begin bringing their little ones to things like this and if I'm just overthinking it.