Generally, in my form-study I usually eliminate horses ridden by 3kg apprentices and that includes female riders.
Of course there are exceptions to the rule like D. Ganderton today and champions like D. Oliver & Co. in the past when the astute punter could benefit by the advantage provided by these champion claiming apprentices.
Imo they generally lack the horsemanship to evaluate how a race is to be run and when to employ the necessary tactics to allow their mount to be in the finish.
I have watched a number of races today where the female jockey(s) have allowed themself to be "boxed in/pocketed" and when they became extricated hit the horse with all the power of a feather-duster!
Would you let an apprentice "sparkie," painter, bricklayer do work on your cherished home.......I think not...you want an experienced "tradesman!"

Cheers.