Price control is when someone decides how much something should cost instead of just letting people choose. Imagine if your mom picked out the price for your favorite toy instead of you!
This happens a lot in governments when they want to make sure people can afford certain things like medicine or food. They might say that companies can only charge a certain amount of money for those things.
The tricky part is that sometimes when the government sets the price, it might be cheaper for people, but the companies won't make as much money. And if the companies can't make enough money, they might not be able to keep selling those things or might not be able to make them at all.
So, while it might seem like a good idea to make things cheaper for people, price control can be complicated and have some unintended consequences.