Just a thought, from a manufacturers' viewpoint....

In the UK & Europe we commonly use the C13/C14 IEC connector for a power inlet on small appliances. I guess this is also true in the US ... but here is the rub, in the UK/Europe this connector will have 230V L-N on it, in the US it will have 120V L-N.

So what happens with a piece of European kit, in the US, that needs a 240V supply? If it continues to use the IEC lead then you could have a C13 sitting on the desktop with 240V on it & another with 120V on it.... a recipe for disaster I fear!

This is one of many concerns that is prevent us (an international manufacturer) from removing captive mains cords....