It's hard for people new to programming or talking to a computer to understand how to be precise enough

And I think filenames with spaces is a great example of this

sure, it's an easy fix, but it's one more hurdle to jump across.

Exactly. And when the inevitable "but why?" comes, you can either say "don't worry about it for now, magic" (disempowering) or explain the actual reason why...when you have lots of these little segues simple tasks and simple concepts become suddenly complex. There's a lot to take in, and although the fix is simple, it's yet one more thing to hold onto that can be imprecisely remembered.

If the next time they sit down to do something at the command line they write the equivalent of `cmd "arg 1 arg 2 arg 3"` it should not be surprising, and frustration that it doesn't work as intended should be expected... especially when they're not even trying to learn about their command line in that moment.