The problem here is that 25k€ is too little for some types of businesses (say, a bridge architect), and way too much for others (say, selling spice mixes online).
I don't get the "seriousness" memes in Germany, which sound more about gatekeeping than anything else. Why not require 1M€? This is serious! More serious! Meanwhile, they have companies likes Wirecard that went under in a day after it discovered a "hole" of 2 billion (magic!).
Why not just allow people to create a Gmbh with 2k€, and then publicise the amount of share capital so clients can make their mind? It's how it's done in France for instance, allows some flexibility (I know, a swear word in Germany), and sounds less like a social punition (something Germans love).
The hack anyway is to create an Estonian e-company, with almost no maintenance/creation costs. Germans are the largest funder demographic for this reason.