Once upon a time when I was working retail and selling women's clothing I heard them say more times then I can count that they couldn't possibly wear what they had on even though they liked it because their children would make fun of them and tell them that they couldn't wear it OR their husbands would tell them the same. Should your style be dictated by your children and a man that normally wears jeans and t-shirts? My answer is a simple; no.
These are your fashion consultants? REALLY? I think women and moms need to own their own style, and if it isn't acceptable to your family then boo to them!
I think women need to find security with their own selves. What do your clothes say about you? What happened to the woman who took risks in her style? Did she die when she got married, had children, got older? It probably did; but does your style still reflect you? If you've always been a yoga pant, jean, and t-shirt gal then you will always be that, OR did you start dressing that way because it was easier and more acceptable to people around you?
As an older woman I struggle with my style all of the time. Body changes and age makes it difficult for me to find things I feel good in. In the same token I don't let others: children, men, etc tell me what is good for me to wear. It all depends on how I feel in it. Of course, I have the sense to know that running around in a tight low-cut shirt and tight jeans at 57 is probably not a good look for me (it might be for others but not for me). I, frankly, am not a jeans lover. I wear them because they are readily accessible but today I only have one pair in my drawers. Reaction from others to what I do wear is that think I'm dressing up or my style is unusual; I have more than one item from this website, and no, I'm not promoting it I just want you to see my style. It suits me because I find it comfortable, stylish, and a lot of fun.
So now that you are thinking about it look on the web and find your style. There are lots of quizzes out there, Etsy also has so many fun vendors. I also recommend that you don't listen to the "experts" because they will vary and normally your perception of yourself and body type probably is tainted.
So have fun, and let your style shine.