There is a large difference in risk between getting into a car with a "friend of a friend" or a taxi driver and getting into bed with a complete stranger.

You may be a nice open hearted girl, who thinks well of everyone Jade, but I'm afraid the real world is not like that.
Safety is of the utmost importance, to protect oneself from STD's or rape

To argue anything else is extremely stupid and irresponsible besides puting women at additional risk.