Gauge of 950mm is the standard Italian narrow gauge, Eritrea was an Italian colony from 1890 to 1941 and the whole country still has a strong Italian feel to it even now. Unfortunately, the country is just plain broke and they don’t have money for anything.
In the countryside, most people were living in shanty towns.
I expect if you go back in 20 years time, the locos will still be there just where they were parked at the end of our trip just slowly rotting away.