Initial Itinerary: (Entry) Italy (3 days) -> Switzerland (3 days) -> France (6 days) -> Netherlands (3 days) (Exit)
With the initial plan, I have to apply for Schengen visa in the French consulate. Now, after I get the visa, what if I need to change the itinerary to the following
Updated Itinerary: (Entry) Italy (5 days) -> Switzerland (3 days) -> France (2 days) -> Netherlands(3 days) (Exit)
In this case. What will the immigration officer ask when I enter Italy with a Schengen visa issued in France? Notice that I just change the number of days I stay in each country. Will this be a problem?
EDIT: For clarification.
The simpler question in my mind is, what if you like a place a lot, and intend to stay there longer, and vice versa, what if you don't like a place and want to move on to the next destination. This will result in change in the number of days declared per country during visa application.