I find it interesting that it's rare for external forces (eg govt) to try to standardise the bike industry. Possibly, it is seen as too small.
I've often thought that electronic groupsets offer the possibility for cheaper bikes and repairs in the future at the low to middle end. It feels, for example, like it should be trivial to have an electronic mech that can be paired with any electronic shifter and run on any speed of bike. You simply bolt them on, pair them via a standardised app, see the speed/cog spacing and reconnect the chain. That's got to be a lot quicker than cabling and setting up gears - and opens up the possibly of standardisation across manufacturers etc bringing down costs. Do the same for brakes etc - and you might be able to significantly reduce the cost of manufacture and future maintenance.