I'm an engineer and have worked in the oil and gas industry for twenty years and while things are slowly improving in terms of women entering the industry we are a long way from parity. Most of the companies I have worked for over the years have worked closely with local schools in terms of arranging work experience, attending career fairs or giving presentations to pupils in a bid to promote engineering as a career and to put it bluntly the phrase 'you can take a horse to water but you can't make it drink' comes to mind when dealing with female pupils. The teachers I have dealt with are trying hard to promote engineering as a career to these girls but at the end of the day there is a general disinterest no matter how bright they may be. Generally speaking, the boys are the only interested ones when discussing big engineering projects, who ask plenty of questions, who get excited at the prospect of working overseas or domestically in challenging environments or dealing with cutting edge technology and its the girls who are generally glazing over with boredom while staring into their phones. The teaching staff I have dealt with over the years have seen repeatedly girls achieving top grades in physics and maths A levels only for them to go off and study languages or some other humanities degree at uni.
There were just four women on my course at uni out of an intake of about 60 undergraduates. Engineering departments are not exactly known for being 'cool' and the stereotype of 'nerds' still kind of holds true today, it is a subject that is basically still seen by many as being difficult and time consuming, up there with computing. I also know from first hand experience such is the demand by companies to recruit more women engineers that if there two candidates of equal merit with one being female the latter would get the nod every time.
Interestingly most of the women I work with are not actually British, they come from other oil centres around the world so my teams tend to be very diverse with people from West Africa, Iran, Brazil, Russia and far east. What is observable is that in those countries engineering is seen as a prestige subject up their with medicine or law and something to aspire to and not something you are pushed in to. I have a Malaysian engineer who actually wanted to study French literature at uni but her parents said no and enrolled her on a chemical engineering course. She resented the decision as first but is now thankful that she is in a well paid industry that allowed her international travel opportunities including a stint working in Paris where she could indulge in her love of French writing!
So long as there are no gender barriers to women pursuing a career in whatever discipline they desire maybe we should just leave them to it rather then trying to achieve 50/50 parity in every industry?
That said, rather cynically I have noticed it is only when engineers started to command decent salaries that suddenly 'something must be done' to get more women into the profession, nobody gave a shite when we were all paid peanuts to freeze our arses off on muddy construction sites or fabrication yards in the middle of winter