I used to carve my lyrics into stones, but I stopped because typos are such a PITA to fix.
grin
But to be honest, I still mostly write lyrics by hand.
Why?
Because a pen and a sheet of paper are more than just tools for putting characters and words on paper.
When I'm writing and get stuck, I (unconsciously) start drawing little pictures (just like most people do during a long phone call).
Or replace the dot on the "i" with a little heart if it's a love song.
Or draw two eyes, a nose, and a mouth inside a uppercase "O" that’s smiling at me.
Or I draw an arrow from line 12 to line 2 to show where that line should go,.
Or highlight passages with borders or underlines.
Or cross them out.
Or put exclamation marks where the cool stuff is.

You can always see how the text evolves, the process of writing.
With a text editor and unlimited undo, you only see the final result.
The process itself remains hidden and is quickly forgotten.
That's a completely different stimulus for the brain.

And last but not least, pen and paper work anywhere above sea level.