It matters.
For many reasons and different purposes.
Yes, wife and other women we know prefer them big. But how big differs from each women.
Also it counts for the opposite side of the story. How small it can be to act fair game.
Some women can't tolerate what they see as a mildly below...
Yes, many times.
But the most sudden or surprisingly ones were the most thrilling also.
One time we met a guy she was chatting with for coffee, and this man started to hug and touch her tighs lifting her dress a bit. It was broad sunlight.