DD is 2 and naps 2-4. Her birthday party and those of her friends has been 10-1. But we all anticipate offering lunch and have small parties. And the last one we attended ended at 12, but they had lunch anyways cause some kids eat at 11, I guess. That being said, two of our 2yo friends don't nap anymore at all.
But DD can skip a nap every now and then and be okay. It would annoy me though if parties were consistently at 1.
SAHM to Magnolia May (09/10), Luke Russett (04/13) and expecting 11/16. Wife and best friend to my airman.