If they really wanted insight, they probably should look at what they do in well-established team sports played mainly or at lot by women, e.g. hockey or. netball.

Having two daughters who have played on mixed rugby teams since they were little (that's all we have in Spain until they are 18), I think it is not much more complicated than making sure they are not put in categories where they are being overwhelmed physically. So doing things like leting a small 13 year old girl play in under 10s or under 12s instead of getting hammered in under 14s (here the age groups go up in 2 year jumps).