Been a Windows user all my life. As Windows has been tanking over the years, I've finally started making the switch as of a few months ago. First was our home theater PC, which was shockingly easy - next was my desktop, which hasn't been as easy but it's been a joy to learn about and make it my own.
I'm happy to pay for a license for anything I use. That included Windows. But, sometimes, the free & open-source route is better - I'm no longer "locked in" to any one solution and it's a fantastic feeling.
As long as you're running Windows 10 without an Internet connection, that's totally fine! Have a good time my dude. But if you are using an Internet connection, security updates are foundational, especially on Windows. I know XP is ancient but this was eye-opening for me: https://youtu.be/6uSVVCmOH5w?t=10m32s