When is it OK to wear leggings?

Leggings exist for a reason. They are more opaque than tights, and provide wearers of short dresses or long tops a modicum of modesty. A good rule of thumb: If you wouldn't wear transparent tights with that top in public, don't wear leggings with it. 

Are yoga pants or workout clothes the same thing as leggings?

No. Certain criteria - including but not limited to fabric thickness, cut, style, and purpose of wear - mean you can wear tight, stretchy pants when exercising without fear or shame. 

Can I wear leggings as pajamas? Even in public, such as during overnight travel?

Yes. As long as you are not wearing them during a time when normal people would be wearing pants, you're OK. 


I'm pregnant. Now can I wear leggings? 
Girlfriend, you can wear whatever you want. 

Are leggings a universal evil?

No. Leggings are practical and comfortable. But they are not pants, and should not be worn as if they are.

Have something to add?