We were also taught time-out is for older school-age kids and some kids take it as you don’t want to see or hear them and create a negative mindset when they sit there angry & abandon. So it depends on your child really. Think, you might have a future ballplayer lol so let them throw toys in the tub/pool from a bucket. Let them throw water balloons, play sports. It’s a normal kid thing, don’t stress it too much though.