Since I am a female, I will give my 2 cents worth. I think your son needs to consider his definition for having respect for women. Is it based on how he would like to treat women, or is it based on how women want to be treated? This is something that he will face later in life also. If he is in the military, will he not be able to treat female soldiers as equals? If he is in a position to hire someone for a physical job, will he refuse to hire a woman and then face discriminatory charges? Those may be far-fetched examples, but it's all about the mindset. Show respect for those girls/women who want and deserve to be treated as equals.