I utterly despise ponchos. Unless they’re plastic, and you’re using them to keep dry in a rainstorm while hiking in the mountains with a heavy pack. Then they’re great!
I was just in the Detroit Metro airport this evening and saw a turtleneck poncho on a gal and it looked excellent. I’m still not convinced that they look good on most people over the age of 6, though.
But they make you look as if your arms are pinned to your sides…sort of like a straitjacket. A sweater seems a lot less intrusive. Wear one of those light ponchos and when you raise your arms to eat, the triangular part in the middle comes flapping up!