Um if a woman has time to waste (which is not very likely to begin with if she has kids), i think masjid wud be the LAST place she’d go to for time-pass.
Also, going to socialize and wanting to get to know more people and be part of a community…thats not “timepassing” or wasting time either. or wud ppl rather that women not know anyone aside from their inlaws/immediate families?