IMO, sweatpants are for working out or "dressing down" after work. Pajamas are for sleeping and are worn to sleep in. I never go out of the house in either, and neither does DD19. She would NEVER wear sweats to high school, and still won't in college- and this is a girl who has a 2 hour ballet class every morning. She gets dressed (usually leo and tights under regular clothes), goes to the studio, takes class, washes up, and gets re-dressed in her regular clothes. We both think that wearing sweats or pajamas in public gives the impression of "not bothering" to care about yourself or how you project yourself to the world. Regardless of what people want to think, this IS important. I have NEVER had a job where you could wear sweats or pajamas to work (and I spent 25 years in research labs where clothes could easily be destroyed), and they are certainly not an option for job interviews or more formalized activities. I also agree with the PP who stated that kids have better self-esteem when they are better-dressed. I see it all the time with the 7th and 8th grade basketball players, who have to wear shirts and ties on travel days. Behavior and maturity are always improved on "shirt and tie" days.