If an article ever needed a TL;DR, it would be this one. For perspective, the way post works in my country is that there's a company which is owned by the stat

If an article ever needed a TL;DR, it would be this one. For perspective, the way post works in my country is that there's a company which is owned by the state and is forced to provide a postal service in all cities. The post office can still make a profit (and usually does). While courier firms like UPS compete with it, the post office probably delivers most packages in the country.