@Augusto2, you got a lot of reactions, because you insulted Elaine, whom others in this forum know as a very helpful and nice person and your remark about M Raymond being French was totally out of order. Do you say such things to your French guests too?
We all tried to tell you with more or less humor (I liked @Jessa0's accurate preview on future guests very much) that it is not reasonable to clog up customer service with a question about breakfast items.
To resolve your confusion: the OJ remark has been in place for many years now, I don't read it any more, so I could not say if you get it every time or from time to time only.
In Rome, like in Paris, there is cheap interesting food to be had on every corner of the street, don't buy too much, most people won't eat it. They all want to try out what they can find themselves.
If you want to be in compliance with every rule and suggestion, buy a sixpack of small OJ packages, if they only drink one glass, you won't have to throw out everything. And buy a package of some dry breakfast bread, best those with singly packed portions inside and a can of breadspread. If someone gets hungry at midnight or at breakfast there is something in the house. And if nobody gets hungry, it keeps for months.
I still wonder: if you get a mail one day to kiss the floor or stand on your head and wiggle your toes for welcome, will you do that too?