Yes, I agree that talking openly is ideally the best approach. However, this assumes that everyone likes talking openly, or is capable of doing so. Many problems happen between people because they are reluctant to openly communicate. That's because sometimes talking openly can lead to confrontation, and some people don't like confrontations.

When I said that "Women do need to be cautious when touching men they have no intention of having sex with", I didn't mean that if a man is touched by a woman that it gives him a green light to jump on her. I just mean that it's about being careful not to send the wrong signals, because touch is indeed one of the signals that woman use to indicate sexual interest. Some women will know the affect they have on men, and will use that to their advantage. I agree that that's no excuse for bad behaviour from men. It's just about minimising the chances of a misunderstandings happening.