This is only partially correct. It is to ensure that you can pay your first bills without going bankrupt after the first week or so. You can actually use the money right away to pay for bills. Also, if you pay in cash, you only have to deposit 12,500€.
https://www.gov.uk/set-up-limited-company
and here’s the registration form:
https://www.gov.uk/limited-company-formation/register-your-c...
(“It costs £12 and can be paid by debit or credit card. Your company is usually registered within 24 hours.”)
The CEO can use the capital to establish the business. It can be used to pay wages, buy hardware etc.
Of course there are obligations for the CEO to not let the GmbH go bancrupt.
it’s like a warning message or something
In practice it becomes an invisible glass ceiling, you just work/pay your way through it when it's time, otherwise keep playing in the shallow end for as long as you want.
Win-win, surely, but patronizing nevertheless.
IMHO, UG are a fudge. They recognised that the barriers to GmbH formation are high but at the same time did not want to drop them so they created something new that allows people to start a company before being able to afford a GmbH.
This contrasts to, for instance, the UK where limited companies (Ltd) are extremely easy and cheap to create and maintain (£1 capital and about £15 cost) so that there is no need for multiple types.
But the government recognized that this was a problem so the "UG (haftungsbeschränkt)" was made possible where you are only required to deposit 1 € initially and than can deposit more each year until you can convert to a GmbH. The UG obviously has to pay more interest on loans if it gets any at all but you are not required to be wealthy to be able to protect yourself from bankruptcy.