I think it is less that "people" aren't interested in how things work, anymore, and more that nobody cares about amateur radio or clunky robots.
I guess that's why there are over 700k licensed amateur radio operators in the US alone.. and why the ranks have been increasing.
There is one way to find out if a man is honest -- ask him. If he says "Yes" you know he is crooked. -- Groucho Marx