Bear in mind also that some Mums use the "excuse" of "childcare for socialisation" if they feel some "guilt" over utilising childcare.

(This is NOT a judgement at all, and I mean no offence, just my observation!)

What you are doing sounds ample socialising to me!

(My 3 do a weekly mummies group of 12 children (aged between 4 and 4 months) as well as swimming lessons, and a storytime at the library. PLUS 2 days in childcare because I work 2 days......as such they only have 1 day off a week to just chill.....and if anything they are not socialising any better than the next child: just more knackered!)