Kids learn from their parents. Spouses learn from each other. If a woman sees her husband is not that makpid with being kovea itim, or making it to shul on time or times it so that he makes it for barchu, don’t you think she will cut corners at times? If its good enough for him (and vice versa)…..
If kids see their parents cut corners, they will too. Eventually, the cut corners become the norm. (I personally don’t see this as the terrible mageifa people make it out to be but according to those who do) To use skirts as an example since this is the thread. Did too short, too tight skirts just suddenly pop up one day? Did we go from flairy skirts that go down as far as you need them to to suddenly too tight and too short? Kids test boundaries with their parents, people test boundaries with halacha. When kids see they can get away with things, they push the boundary even more. Same with halacha. I don’t beliebe Rabbonim have been asleep at the switch, and if they are not putting out these long screeds about the “prutzos” and “zonos” masquerading as BY girls, I don’t thing anyone else should either.