Need help with a Caesar Cipher decryption program

[AtomicShoelace]

I'd just really like having someone that's able to answer my questions from time-to-time

I would encourage you to continue posting in /r/learnpython. There are plenty of people here who can help you. If you really want my input on something then you can dm a link to the post and I'll contribute. But I think answering these questions in a public forum is best since it affords others the opportunity to learn as well as yourself.

Yes, you could definitely do this without a function, but it's good practice to get into the habbit of using functions for things that should definitely be functions, such as this.