I, like many who have responded here, do not want to attract attention for the wrong reasons. When I am out in public I am usually among the more nicely dressed and made-up women but I am not dressed in such a manner as to be stared at. Recently a woman commented to me about how nice I looked whenever she saw me.
I certainly do not want to be seen as a "man in a dress"!

I disagree with your statement about how most women want to look "at least presentable". IMHO, there are more women who care very little about how they look than there are those who do take some pride in how they look. A quick trip to a mall or a Walmart will show you what I mean. Of course, my eyes are drawn toward the more nicely appearing ones!

I think that "blending in" means that one is dressed appropriately for the occasion and your age; ie, no 5" heels and miniskirts with lots of makeup to go grocery shopping if you are over 60 years old!