Comment by chongli

I think you’ll find that won’t actually work in practice. Many contract workers are not independent freelancers but actually employees of a different company who contracts the work out as a whole.

For example, a courier company like UPS employs all of its workers but the packages it delivers are for other companies who contract with UPS to do the work. If you force all businesses to employ their own couriers then UPS can’t even exist as a company and small businesses that depend on courier services would simply be unable to function at all.