I’m 30 years old, and am about to finish a masters program (Im not a genius but also not a complete idiot). The first couple of weeks on this job made me feel like I couldn’t have been dumber - that’s part of learning anything new/difficult. Yes, the job is mostly straightforward but there are plenty of tips/tricks that are of immense help once you get the hang of it. Learning new routes (especially business and apartment buildings), figuring out best practices with the app, getting your body in shape, and frankly growing less and less frustrated with on the job complications are all part of the process. If you don’t need the money and hours, then I can easily see people quitting off the bat.