Samona wrote:
Local running clubs also seem to attract more and more female runners.
Furthermore, female runners are VERY active on Instagram, another social platform.
This is where your logic fails, right out of the gate. "Duhhh, there are lots of X on a photo-sharing app, why aren't there lots of X on a training-sharing app."
Yes, there are lots of Instagram-runner girls, the type who "race" one or twice a year and meanwhile post photos of every jog, meal or outfit purchase. And yes, there are more and more female club runners. In my experience, these don't overlap all that much. THESE ARE NOT REALLY RELATED GROUPS.
An interest in posting a cute photo in your new running pants on Instagram is not the same thing as an interest in charting your runs over the weeks, months and years, or caring to share those details, look at and learn from others' training.
Within the clubs I run with, the women are about as likely to be on Strava as the men. (25-40 y.o. sample, mostly.) I would suspect it is close-ish to even within the top 50 of any major race. In the mid-pack, girls are less likely to be on Strava and more likely to post about running on Instagra.
Good points about the safety fear above. Hadn't thought of that.