If you want to influence others, you have to do it with a “gitte neshoma” and not with harsh words and pre-judgments. The only way to impress the beauty of tznius on others is to be a beautiful example of all that is good about Yiddishkeit and tnius. If one goes around pointing fingers you impress upon others the reason one should not care about tznius, to remove themselves from finger pointers and busybodies. There are ways to teach without insulting or embarrassing another person. For instance “that is such a lovely skirt, my daughter is a bit taller than you, do you think she can get it with a longer skirt so it covers her knees in all situations?”
Let us all start this new year with a new attitude, and that is to make Ahavas Yisroel a priority.
EDITED