Basically at your level you try to have outline this for your age, because manority of us have grown beyond that age where we need to explain the source of your money to anyone, be it family and friends, know that to make money you need to have privacy and secret, and many believe that bad things happen to whatever they let others know most especially the thing that only them have developed over time.
So for that, we just decide to remain private, I don't think at my age, anyone around me will still be questioning my earnings, most especially when I dont have anh questionable characters.
A couple of times people who are too inquisitive about knowing everything about you are the same people who tend to have secrets they won't ever tell you, they are very secretive but want to know the least of your secret
Those kind of people don't deserve to know much just so they don't use it against you one way or the other
Personally I think people should not even be concerned about what people do especially when they are not of any questionable character or found wanting
