dependent on where you are, they are textbook skirting the law. uber got crushed when they launched in sweden because taxi drivers need to do basically the same training as bus drivers. it’s an extra letter on your license, with all that entails of age limits, theory and practical tests, x amount of time driven a year etc.

nowadays ubers in sweden are just taxis, which hilariously means that they by law have to have a price list on the cars. which basically kneecaps their entire business model.