

Technology makes possibilities and not outcomes. The idea of a bipedal mechanical assistant that can carry , move and lift items for the elderly , on call 24/7 could be another possibility.
It’s likely things would go as you say. Still there is a possibility that some other applications could come out of this kind of bipedal platform as well.
Delivering mail is a complex task for a machine. This is a technology forum so at some point we should be excited that there are possibilities in the future.
The distance these devices could go gives many more possibilities than a similar platform that can move shorter distances.
My first thought for a platform that could move through human spaces at 13 miles an hour was a military robot for urban combat similar to a terminator. So mail delivery robot is the optimistic version of the future.




Bipedal robots make sense only because the infrastructure around was made for humans. Wheeled and tracked robots can have trouble though spaces designed for humans. Designing with wheelchair access is mind had to happen on purpose. A small set of stairs or uneven terrain can create a big challenge.