God answer

Why doesn't God answer every prayer with a YES?
Some prayers conflict with other prayers and both cannot be answered at the same time. A child praying for bad weather so they can stay home from school. While someone is praying for good weather so they don't miss work.
What about people praying for the ball team to win. Can't answer both. I wonder if God cares who really wins. What about opposing political candidates? We can go on and on. If there are conflicting prayers then one of them cannot be answered in the affirmative.