I dated and married the same guy. So no there is no difference for me. Why would we want to date people who we weren't compatible with?<br />
While your experiences with dating my be representative of your experience, they are hardly representative of what most men experience. I personally know a large number of men who dated the kind of women they ultimately ended up marrying.
Think about this like the Woodstock stories. If you believe everyone you run into that says they attended Woodstock, you would have to believe that 20 - 30 million people were there. The same is true about the 60's and 70's in terms of sex. We didn't invent free love. It has been around for thousands of years. It is simply talked about more.
There were many STDs around long before AIDS.
AIDS just made us more careful. As a percentage of the population, there are probably more open marriages and relationships then at anytime in the last thousand years today.
I would suggest that its not in any way limited to the over 45 crowd. It seems to cross all generations in about the numbers.
AIDS affected a relatively small part of the general population. And, younger people tend to believe that they are invincible. AIDS didn't slow things down very much. We were all just a bit more careful.