This means you will need to invest capital when joining. Imagine a bus drivers cooperative. The pay will be nice but the downside that you have to show up with

This means you will need to invest capital when joining. Imagine a bus drivers cooperative. The pay will be nice but the downside that you have to show up with your own bus to join. And then probably be indebted to a bank. If a company is owned by employees, where does the capital come from?