You mean July 4th and not June, ossobuco.
Well, I don't know who came up with these dates, but a lot of
us have children in school, and none of the dates correlate with school
vacation.
So if I may suggest: the retirees should do their own travel arrangements, and the rest of us will get our own itinerary as well.
No offense, one of the people voting for April is out already. Besides, Easter in Europe is a hughe holiday and everyone is taking vacation and heading for the beaches. Not a good time to travel anyway. Europeans
know that!