I want to say a lot of it is that legal and financial structures don't support it very well, it could also be said that since it's such a small minority of businesses (I want to say <1%) that education resources on it are also scarce.
For example getting funding to turn a business into a coop, let's say it's a one man owned business who is going to retire and has no family, so he offeres to sell it to the employees so they can turn it into a coop. Financially almost no investors would take that bet, the banks wouldn't really give a loan to 10+ people who make salaries, really the main way this could happen is if the owner took a hit and did something like a persona loan and let them pay him back from the profits over the course of 10 years.
I've also heard that there isn't much information on how to start or run one, like looking for books in the library can often fall short or you will only find something outdated. I think the lack of information is part of it as well as it's been so disincentivized for so long that most we can find are either run in a hippie commune style, or created by a small town government to provide services a corporation wouldn't (Best internet I've had was due to them having set up a coop), on top of that I can only think of one college that even teaches coop structure and that's Mondragon in spain[1] but on searching deep enough I also found U of Wisconsin[2] has something too, that's still not a lot.
For example getting funding to turn a business into a coop, let's say it's a one man owned business who is going to retire and has no family, so he offeres to sell it to the employees so they can turn it into a coop. Financially almost no investors would take that bet, the banks wouldn't really give a loan to 10+ people who make salaries, really the main way this could happen is if the owner took a hit and did something like a persona loan and let them pay him back from the profits over the course of 10 years.
I've also heard that there isn't much information on how to start or run one, like looking for books in the library can often fall short or you will only find something outdated. I think the lack of information is part of it as well as it's been so disincentivized for so long that most we can find are either run in a hippie commune style, or created by a small town government to provide services a corporation wouldn't (Best internet I've had was due to them having set up a coop), on top of that I can only think of one college that even teaches coop structure and that's Mondragon in spain[1] but on searching deep enough I also found U of Wisconsin[2] has something too, that's still not a lot.
[1] https://www.mondragon.edu/en/international-mobility/mondrago... [2] https://uwcc.wisc.edu/