Should you dress differently as a mother?

I ask because I know it isn't our place to judge, but our church members today were speaking about a woman who has two kids, but still dresses and has the behavior of some 18-year-olds. Our pastor said that at the age of 38 years old, your appearance as a mother should be turned into a role model for other children to look up to. Today she was turned around at church for wearing a dress similar to the one below. the dress was extremely too tight that if she sat down, nothing will be left to imagine. No-slip or anything was under the dress at all. But as a mother, should you dress differently in a more appropriate way after you have kids?
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+1 y
I just saw a comment that made me put this here. However, my question has been selected great by gag so I decided to add a bit more details. The girl in question is out on bond for ALLEGEDLY gang/drug activity and ALLEGEDLY having sex with high school kids. She was a teacher having sex with the students.
Updates
+1 y
Thanks for everyone's opinions because they are definitely appreciated. A church member's wife asked her about the dress today and the lady said she was told "I love the attention I get when I dress like this unless I show my boobs that is the only way people will look at me" I just wanted to update everyone because I am sure everyone was curious about the conversation regarding the dress. I respect everyone's opinions regarding the church and what was spoken about.
Should you dress differently as a mother?
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