Why are "green energy" projects often subsidized by governments?

Green energy is power from nature, like wind or sun, and governments help pay for it because it's better for Earth.

Imagine you're building a treehouse, but instead of using wood from real trees, you use sticks that grow back every year. That’s green energy, it doesn’t run out, and it doesn’t make the air dirty like some other kinds of power.

Sometimes, starting a green project is like planting a garden. At first, it takes time and care to get things growing, but once they're strong, they give you food for years. Governments act like helpers who give you seeds or water when you start.

If they didn’t help, people might choose easier ways of making power, like using coal, which is faster but doesn’t last as long and makes more mess. So, by helping with subsidies, governments are like gardeners who want the world to have lots of green gardens in the future.