Why no women in R/C?

up here in canada we've got a few die hard chicks... there is one that's a pretty decent driver too... most of the other ones come with their husband/boyfriend/kids to the track and pit and marshall... 3 of the most hard core ones got to pretty much all the races we have in our series and even travel to the states for the big races... they are awesome rc chicks... my girlfriend makes and pretty good pit guy(person i guess)... she's not the fastest but she gets everthing done right... the best part it she likes to clean the car... lol