I am a big fan of rock collecting and would consider myself an amateur geologist. I also like crafts with these materials.
I guess you mean  Amateur geology. It is some hobby which some few people like. You know collecting rocks and mineral specimens from their natural environment.
Yes that's what I mean. I enjoy doing those activities and studying the composition of rocks, of which there are 3 kinds.
Do you do it for money too. Because people that started this did it for commercial purposes. 
There's not a lot of good money in amateur geology unless you are a specialist. However I would be interested in this kind of career in the future. It requires a lot of college study.
I guess it got harder when more and more people have been drawn to amateur geology. Afterwards only the experts were able to find valuable rocks 
Acquiring valuable rocks is a financially beneficial part of the geology process, although most of the studying is paid for by government grants. That's why a college degree and course of study are necessary.
Yes, getting a fancy college degree on this can be costly. Where doing it as an amateur only requires a collection that can begin by simply picking up a rock.
I have collected a lot of interesting rocks. The intrinsic study of geology is the main motivation for amateur or professional geology. Do you have a rock collection?
No I do not. But i am a member of a group that search for specimens and compare them in groups as a hobby. I have nothing to compare though