Interestingly, that’s how I started coding and I’m still young(ish).
Borrowed a book from the library as a pre teen and followed along using notepad on my dad’s computer.
I didn’t see syntax highlighting or autocomplete until I was much older. So I can see why some people nowadays aren’t concerned as much with things like indentation. Syntax highlighting adds another dimension of legibility. I couldn’t imagine coding a website even just in plain old html without good indentation if there was no syntax highlighting.
It’s all a continuum. A great test for mid career programmers is solving a problem from a blank text file. Especially true for more languages with great IDEs like Java or C#