By the 1930s pants for lounging at home (or sleeping in- the pajama), pants worn for casual summer beach attire, and sport pants were a regular part of everyday fashion.
They started at a nice roomy fit and went crazy with oversized pleated legs. These vintage photographs below show this popular fashion trends of women from the 1930s...

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s

Wide-Legged Pants: One of the Popular Fashion Trends of Young Women From the 1930s