I worry that you (and me, and others) have bought in to the "flexibility" bullshit that Uber often spouts.
Most people still have the same rough, basic needs. A "supplementary" income is not enough to do this. Every single Uber driver I've ever asked does it as a full-time job, but doesn't get the pay or protections of a full-time worker.
Especially in the UK and other more regulated countries than the US, becoming an Uber driver takes time and money as you require a licence. People aren't doing it as a side-gig. It's their job. And Uber knows it.
Most people still have the same rough, basic needs. A "supplementary" income is not enough to do this. Every single Uber driver I've ever asked does it as a full-time job, but doesn't get the pay or protections of a full-time worker.
Especially in the UK and other more regulated countries than the US, becoming an Uber driver takes time and money as you require a licence. People aren't doing it as a side-gig. It's their job. And Uber knows it.