A Stiff-Necked-People
A Stiff-Necked-People is when you're so stubborn you'd rather be in physical agony than admit your way of doing things is outdated.
My aunt did the whole Passover on her laptop, and her neck looked like it was about to explode.
My uncle did the Easter service on his phone while eating a whole ham, and he got a migraine.
I tried to do a seder with my cousin and we both got neck pain so bad we screamed at each other through the screen.