Okay kiddo, listen up! Social interventionism is when a group of people or a government tries to help other people who are having a hard time.
Let's say you have a friend who's feeling very sad because they don't have any toys to play with. You want to help them feel better, so you decide to share your toys with them. That's a bit like social interventionism! You're taking action to make your friend's life better.
Sometimes, though, the things that make people sad are bigger than just not having toys. Maybe your friend's family doesn't have enough money to buy food or clothes, or they don't have a safe place to live. In those cases, social interventionism might involve things like giving money to help out, building housing projects, or creating programs to get people the support they need to get back on their feet.
There are lots of different ways that people practice social interventionism, but the most important thing about all of them is that they're trying to make people's lives better. It's kind of like being a superhero – you're using your powers to help others!