Well if the system fails a bit, your bus or tram won’t drive because the driver isn’t paid.

If the system fails so hard that fuel isn’t available at all, you have a catastrophe uncompatible to industrial society in total.

If I were a burglar the amazing maze would have definetly stopped me.

I find it useful for people who both derive income from work but also own capital.

London designed them specifically to be a tax haven.

I wouldn’t do it. Instead clean the bolts and replace the nuts if they are too corroded.