Just another excuse for why more men prefer tech than women.  
It is not a head start, it is personal preference.  There is nothing inherent that says women can't succeed in the STEM fields, it is a choice, and often a wise choice on the part of women to do what interests then instead of kowtowing to some societal requirement that women should do as men when it comet so employment.
As for head start, I doubt it.  Most of the young people using computers don't have a clue as to how they work.  As the old commercial said "I don't want an employee who can reach 100,000 on space invaders, I want a person who can program".