How about other examples (age, how plates are removed from the Shabbos table, tablecloth etc) The main thing which must be considered is whether the couple meeting first will positively affect the processing of this information vs. them not meeting first)
The age issue IS a factor, your happy marriage (ad meah v’esrim shana)notwithstanding. However, the other things you mentioned are such unbelievable narishkeit as to be an embarrassment for anyone to even ask about such a thing! And shame on anyone to whom this matters in a shidduch.