Why do French people like to eat snails so much?
They can't stand fast food.
French Snails
Explanation
Explain Bear
Okay, so you're the type of person that needs everything spelled out. You asked why the French like snails, and the answer is a wordplay. "Can't stand" means both they don't like something AND they cannot physically be on something. Snails are slow so they can't be on the 'fast' food.