That's ridiculous, there are tons self-employed people

It is still true that only companies are required to accept a certain money. If you earn money as self-employed or Ich-AG you still have different accounts (and taxes) for business and private. Theoretically.
That many people do that different is one of the sources of income for Buchhaltungsbüros. (Where you e.g. have to type in a nurse costume as Betriebsausgabe because the person is a cam girl.)

I dont have the funds to start a new live in Somalia, thus Im not free to do so.

With that you can justify anything and it is factually wrong. All you need is a half way working body to hitchhike to Somalia.
You just prefer to not start at zero, as millions of people in this country have to.