If you can provide some documents of being a free lancer then it might enough for you to open an account to a bank, I am lucky that here in my country I can open an account with a single ID and some sort of question.
How can he provide some documents if he doesn't want to get an ID?
To the OP.
So you need to prevent from making the fines because you cannot pay the fines if you don't have an ID, but they could still give fines to you because you are citizens in your country.
It is okay if you don't want to have an ID, but you need to think that every citizen needs an ID for explaining that you lived in one country.
It doesn't matter if you don't want to go to another country, it doesn't matter if you are not driving.
But you lived in one country that every citizen must have an ID.
No one force you to have an ID, but it's related to the law in every country.