Okay... my son has been playing soccer for the past couple years and I always wore jeans and regular t-shirts to every practice. Comfy, but not always appropriate. Some days, it's very hot and humid. And sometimes we have to help shag balls, warm up kids, and be Line Refs. So it might be nicer to have something a little more appropriately fashionable. Like NICE t-shirts and perhaps a pair of shorts right? I don't wear shorts... but I'm going to give my white legs a tan and get out there! LOL
Thus the soccer mom wardrobe. I chose two casual, but pretty t-shirts, a pair of comfy shorts in corduroy for the Fall season, and a pair of jeans. They'll all work for soccer season. It's going to start getting chilly during practices so the jeans will be perfect. And the shorts are fine for our daytime games as it's still very warm.