McD lunch - not helping going green

Son needed a quick lunch after a sports match and we stopped at McD. It was a very hot day and all our water bottles were empty, so I ordered a soda. At the pick up window I quickly asked if I could get the soda in my cup - after checking with the supervisor - we learnt we would need to pour it in our cup ourselves. Aehm. What is the point then?

Maybe that works if you just want to use your cup, but this is not helping when you try to avoid any single use cups with plastic lids. McD, you should overthink this. Starbucks can do it.