If you focus on a single aspect and ignore all the other issues, sure, there's no problems whatsoever. But when gig economy jobs are the only jobs available for a certain person, it's hard to argue that they're entering those fully voluntarily. The only alternative to them is starving or getting assistance. In the case of Uber, they can cause long-term issues for workers who gamble on buying a car for the job. Additionally, they cause the higher paying versions of the job to disappear, cause taxes to go away, and force employees into not being able to plan for the future. As much as I enjoy having a single mini-cucumber delivered to my door in 10 minutes for a few euros (thanks, Gorillas), there are some extremely negative things that come with those jobs having replaced other better paying jobs.