How would they understand the original icons, then? Nobody I asked understood them, except for the "kcal" icon which you would only understand if you could read

How would they understand the original icons, then? Nobody I asked understood them, except for the "kcal" icon which you would only understand if you could read. McDonald's plan to get people to understand them is to put the words next to the icons to get people to understand the icons, which also wouldn't help if you can't read.