Monty Hall problem is popular topic on the Internet for a few reasons.
It is a real world decision problem from a popular game show.
The correct strategy is counter intuitive and generates passionate discussions.
It is a very good toy problem for explaining how bayesian probability works.
For understanding why "changing the selected door" strategy, playing the game yourself and running some simulations can be very helpful.
I put together this google colab notebook for doing just that.
If you have never used google colab it is extremely simple to get into. You don't need to know any coding. All you need is a google account and you can run python code in browser. Here's another google colab notebook going through baby steps in colab. Try it. It is easy and fun.
Understanding Monty Hall Problem with Simulations 2020-09-07