Actually, pretty much all land is owned by the government in Singapore, and leased out for about 30 years for commercial property or up to 99 years for residential property.

Because privately owned vehicles kill literally one million people every year.

Places like Singapore and central Tokyo are already like giant apartment buildings. Private ownership of objects far exceeding the size of a human is a bit silly concept there.

Land speculation is probably the worst thing in the western world. It rewards you for your neigbours work.