[pc86]

Nobody who is starving decides to just go through the drive through.

Fast food is convenient, that's it.

[criddell]

Convenient, inexpensive, delicious.

You might personally disagree on any of those points but for enough people it’s true.

[dsego]

I mean, you could say the same about drugs. I don't think people spend their money rationally, there is piss-poor folk spending money on booze and unhealthy diets.