Not sarcastic.

McDonald USA app alone has 10,000,000 - 50,000,000 downloads.

Why would you think it's ok to be ignorant on the basic way 100 of millions order their food?

I assume you are not in IT, since these apps are the cutting edge being in such large markets, but even as being a part of society it's important.

Would you be proud of never having been to one opera or never having watched one sport game?