4. They are trained in the real world, and within the community they are serving.
5. The barber's incentives are aligned with yours. If they solve your problem, you're still a repeat customer. In the case of therapists and chiropractors, they are incentivized to manage your problem indefinitely or to find new problems.
1. They are cheaper.
2. You get a haircut.
3. Community.
4. They are trained in the real world, and within the community they are serving.
5. The barber's incentives are aligned with yours. If they solve your problem, you're still a repeat customer. In the case of therapists and chiropractors, they are incentivized to manage your problem indefinitely or to find new problems.