What are nets for?

[Piotr]

@Witchdoc59

For instance in the tutorial the schematic simply used ground symbols for grounds where as I have been drawing lines back to the actual ground.

There are different schools of how people draw their schematics. Here I have shown how my schematics looks like:

Build schematics using kicad

I like to have things ‘connected’ so my schematics looks differently (intentionally details not readable): [Schemat] But how your schematic looks to be easy readable for you - your choice.