Paris Convention and Visitors Bureau
ParisInfo

Upon our arrival into Paris
We usually stop by the Welcome Centers either at Charles de Gaul or Gard Nord . . .

Like every other customer service experience (anywhere in the world):

You either talk with someone extremely helpful (like your “grandmother”!) who is looking out for your well being
or
You talk with someone who just doesn’t seem to care (they didn’t read the materials) they are not being helpful and sometimes providing dangerously false information because they are not really listening to you
They seem anxious to finish their time with you  – so they can resume chatting with a co-worker

I am honest to admit that probably most of the problem is my poor mastery of the French language