Minimum wage job working ungodly hours for peanuts. Peeing in a bottle. What kind of service do you expect? These guys most likely have 100+ deliveries a day.
Your first question is spot on tho. It's like the Simpsons episode where homer looks after waste and comes into their house and empties the cat litter.
The parcel was delivered and you have your goods - the guy isn't there to entertain your loneliness and offer small talk or white glove it into your hand..
It's not like you get a choice of who delivers your stuff 95% of the time. It shouldn't be expected that if I don't get to the door in under 5 seconds my stuff either gets returned or left out to get soaked/damaged in the rain if I'm not home.
If they don't like to deliver stuff then find another job surely, there's tons of jobs around me requiring no experience.. Royal Mail, DPD and Parcelforce seem to manage no problem.
There are plenty of minimum wage people out there that don't make it other peoples problems.