This is wiring for house. Will the old model wiring work? My electrician told me it's not a problem if both ends are of positive side in light bulb or fan, I know it won't turn on. But will it cause harm to fan or bulb?
Your approach will work but is illegal in the Netherlands.
The reason is simple.
Normally your bulb (load) is on one side connected to neutral and the switches are handling the live line. In your approach one can no longer be sure that the bulb is not connected to a live wire when not burning. So forbidden.