I live in Quebec, Canada... and we are one of those rare places where there are two national holidays.
On June 24, we celebrate St-Jean-Baptiste, the National holiday of Quebec. In order to celebrate our beautiful French culture, we drink lots of beer and set giant piles of wood on fire.
On July 1, we have Canada Day, which is usually a smaller party... some beer drinking, fireworks, etc.
Few people celebrate both. People who are separatists will care only about St-Jean-Baptiste and those who want Quebec to remain part of Canada will celebrate Canada Day. As for me, I don't care either way and I rarely celebrate either.
Growing up, I was in a town that was almost entirely French so we always had big St-Jean-Baptiste celebrations, and nothing for Canada Day.
Funny thing is, July 1st is also known as moving day because most leases expire on that day... so a lot of people are too busy moving to celebrate Canada Day. Some say it's a separatist conspiracy