Also, running a bakery is a fairly capital-heavy investment. Friends of ours closed their bakery when the oven broke - it would have cost at least 50k to repair and that was the point they decided to retire (despite offers from many people in the street to chip in).
Food preparation is food preparation, and the practices needed to make food safely do not require years of education (and are proactively ensured by inspections everywhere in the developed world). So that risk can be crossed off the list easily.
Other risks? That the bread tastes bad, or that the business will not be run profitably? Those risks are better borne by the person investing their capital and labor, rather than trying to protect people from themselves through more education.
Edit: Changed example.
As best as I can tell, we haven't had a fatality from a bakery explosion in the US in the last 70 years, despite a much lower level of regulation. There's been a couple of large factory explosions and a few grain elevators/mills that have killed people, but ordinary bakeries seem not to have managed to do so.
There's also health risks from flour dust, but there's ample workplace safety regulations that help mitigate these.
Speaking as a German, it's also a failure to integrate these people properly. The small bakery in my home town closed down, too.
Immigrants are in no short supply, but there are a few factors that prevent them from taking on a venture like that:
- They're generally forbidden to work until their formal immigration process has made enough progress in our bureaucracy, which can take years
- They usually have no capital to pay for up-front expenses like buying the buildings and equipment
- We segregate them from society by putting them in some sort of immigrant shelter while the bureaucracy does it's thing
Especially the last point is rather bad I think, it leads to parallel societies that keep to themselves rather than integrating into the German society surrounding them. Most Muslim migrants would probably rather not operate a "German"-style bakery in the traditional sense.
Our capability for integration is declining, too, because as a society we are becoming more and more estranged from our fellow citizens as community activities, especially in small towns and villages, dry up.
Not sure about Germany, but there is a formal qualification for bakers in France.