I know it's cynical but having lived in rough areas I get a chuckle out of sheltered engineers designing these and not expecting teenagers to absolutely destroy them in the wild. The poor Estonians can't grok what it's like in East Palo Alto.
Just like that pile of junk, AKA "hitchbot", in Philly.
I find it funny that those who call others sheltered in Silicon Valley (and they're right), think that East Palo Alto is the rough neighborhood. They should spend some time in the really bad slums and crime spots around the world with dozens of murders a day, rampant violence, and lack of security.
Ah, does this mean that, robot-wise, we should focus efforts on developing something along the lines of ED-209 [1]?