Are there any women electricians? Maybe they're prevented from pursuing that trade, which is wrong. 
Never seen one. How about wimmen plumbers or HVAC?
These jobs are physical, require working in unpleasant conditions and often nasty dirty.
Plumbers in particular need strong backs and great hand strength to turn wrenches and install heavy fixtures. Same with HVAC.
Can you picture a woman lifting an awkward 300-400lb A/C compressor into place or positioning a heavy cast iron tub?
There are many men who can't physically do these jobs.
Women construction workers or road crews? The woman is usually the one holding the "stop/go" sign directing traffic while the men dig.
Jobs like this are not suitable physically for wimmen.
Businesses in these fields owned by women are often just shams set up to get government contracts.
It's a joke to think wimmen can be Special Forces soldiers or infantry troops. Pilots and equipment operators yes.