It's a shame because all the internet protocols were designed to be decentralised. Email in particular is one of those things that can be difficult to self host and manage, so it has been centralised with the big players like Microsoft and Google. For business/life critical operations it makes sense to use one of the big boys because you can't afford to miss an email, but for independence it is really nice to do it yourself. At the end of the day though the buck stops at your ISP, and if they cancel you, you're in trouble. Unfortunately this has been nationalised in many countries.