No offense but if that's what kills your entrepreneurial spirit it doesn't sound like it would've carried you very far. It's really not that hard if you want it. You'll need it sooner or later anyway if you want to be more than a one man show.
Like I said, you'll be facing a lot of substantially greater challenges.
The world isn't black and white like that. Some people even want to do those things on the side. And some become more than a one man show after some time and without having planned that. Not every one has (or has to have) the kind of extreme passion that you are referring to.
Sure, but if that's your reason to do that you're not being reasonable.
The point is that relative to everything else you need to get right to build a successful company in any country, taxes, payroll and accounting in Germany frankly don't even register.
Like I said, it's 1-2 days out of a year for me.
If that seems like a big hurdle, it wasn't the reason you didn't build a business.
There are challenges with building a business that are specific to Germany that actually matter.
By contrast, the concerns about bureaucracy are a tired stereotype. There's a grain of truth to them, but if they really pose a challenge to you, you didn't want to do this in the first place.
Like I said, you'll be facing a lot of substantially greater challenges.