Yes, and they should be integrated with the males
Yes, but keep their units seperate from male units
No, but women should be given some basic infantry skills beyond basic training
No, women should never serve in a role where they may encounter combat
19 year old men and women do not engage in this sort of behavior, so we should ignore it?
Ar eyou willing to lead infantry units into battle and face the consequences if these things come into play during a battle? Are you willing to confront the familes of the men and women who may potentially die when these 'imagined' deterrents pop up?
Are you willing to control the men of a unit and prevent atrocity the first time a female soldier in found raped? What do you think would have happened if those had been young women pulled off street corners in Iraq instead of young men?
Are you truly willing to face these things? Battle is not a kind or friendly activity and weaknesses and mistakes are exploited with absolute ruthlessness. Simply dismissing things because you do not want to acknowledge them does not mean that your enemy will ignore them in battle.