Anecdotally when I lived in London Amazon delivery drivers always seemed super stressed. Like they had way too many deliveries to make in too little time. It c

Anecdotally when I lived in London Amazon delivery drivers always seemed super stressed. Like they had way too many deliveries to make in too little time. It confuses me because it doesn't feel like deliveries would be that much more expensive if they were given say 20-30% more buffer. Delivery drivers don't get paid much, and last mile doesn't make up all of the delivery cost anyway. It almost feels as if a piecework pay model would work better because it would give the individuals the ability to decide that making $N an hour and taking their time is better than $N*1.2 and playing race car driver, running up stairs, getting signatures in 0.1 seconds etc. Whilst a target based model is basically 'rush fast or get sacked'.