I'm not from Seattle or the US so don't know that stereotype. In the same way, I don't expect restaurants to use QR codes for menus because it's fairly rare in my experience, so no I would not plan for it.

I prefer it when venues like restaurants design for all and don't expect knowledge of local customs.

> Once again it seems like you want me to inconvenience myself because you don't want to make the effort.

This is not the conclusion most would draw from this. If anything it seems fairly well understood that QR menus are mostly beneficial for restaurants not diners.