This numbers are completly screwed through the invention of the new auto-entrepreneur status five years ago. But this new status is not suitable for any startup. Thats nice for plombiers or other handy mans. But even those should avoid to earn more than a basic income.
It's great to start a consulting activity too
Well hopefuly you bill enough that you need to create an EIRL or EURL, auto-entrepreneur status is not good for a successful consulting activity, unless it's a side gig.
That's why he said "start" :)
You can start testing your ideas working as an auto-entrepreneur on your personal websites or mobile apps and later create a startup when you need funding.