That's a good approach too!
The way mobile controls work now is that an invisible mouse cursor snaps to wherever you touch the screen and stays there until you touch or drag again: this is not something I implemented, but rather something that is natively supported on mobile, while scrolling, instead, isn't.
As I mentioned, even for the latest version which just came out, I'm currently focused on working towards a full game release on Steam before implementing mobile support (which would require significant changes to the game's systems).