So I know eventually my ass will get fired. It's just a matter of when.
I don't really understand it. But it's how the industry works.
Edit: 8-12 is for unambiguously great attorneys. A lot of decent attorneys get shown the door after 4-6 years. People who can't hack it (usually because they won't put up with be worked like a slave) will only make it 2-4 years. A lot of people quit.
The downside is the average experience of your employee is going to be a lot lower, but that must not be the top goal of the law firms that employee this.
But with stuff like writing wills, drafting simple contracts, entity formation, patent applications, etc. tend to have a shorter learning curve.