No it really doesn't. Knowing water freezes at 0 gives you no help in day to day life vs knowing 32 or 300 for water to freeze. You still have to be cautious driving above the freezing point. Your refrigerator sits a few degrees above 0 instead of 35 or 305.

Knowing it's 20 out only tells you useful information because you memorized what that feels like. You could just have internalized what 375 feels like.

Celsius is nice if you need to build a thermometer from scratch. That's not something people generally do.