I love these suggestions! And one of the great things about PG (if I may say so myself) is that this kind of stuff can be added relatively easily. Citan built the tech framework and content pipeline with the live game in mind - so stuff like this can make it into beta updates or the ongoing updates after release.

... which is why I keep a long, long list of suggestions for the future. And all the little details you can think of to help these skills fit into the world are absolutely wonderful - you think of a lot more cool stuff than we can.