Sure, it's nice on a dark winter's evening to relax in pj's in front of the telly. But I see threads on here where posters can't wait to get in the door after work to put them on, or don't want visitors on Christmas day because they can't stay in their pyjamas etc etc.
What's the big deal about wearing pyjamas? Yes they're comfy but it's not like most modern clothes are tortuous to wear.