It’s funny. At my last day job I worked at a small company of 30 employees. During the time that I worked there they went from having no dress code to the strictest “business casual” dress code of any place that I have worked. Now I work in a large corporate environment. I think there are around 600 employees at my location. The first week I was here they downgraded the dress code and I have have been able to wear jeans to work every day since.