It is amazing to see that in only 5 years, it has become so normal and accepted for boys and girls to be of similar age. And this is all thanks to the awareness that NASI has brought to the forefront.
I’ve noticed the same (I was just recently at a vort of a 23 year old girl whose chosson is a bit younger. The girls’ father credits NASI for helping make it more acceptable). Yes, anecdotal.
BTW, the title of this thread is “There is NO Shidduch Crisis”. That’s at best anecdotal, so the OP is guilty of his own accusation.