Any clarification you can give would be helpful in the reading between the lines part.
If I sound harsh in my assessment, it is in part to provoke thought and self examination, a wee bit of the Socratic mixed with Eriksson and Virgil. But in my defense you will also please notice, the parts you may find harsh in my response about challenging or loving your parents are directed as questions by me too you...not assumptions on my part, and the entire latter part is basically a confession of how I view my "own" situation in regards to keeping my own lifestyle a secret from my parents because I didn't want to feed my own ego at their expense or mess up their world.
I would hope most of us don't seek confrontation with most people, family included.
At least we usually tell ourselves its not intentionally, it may however be unavoidable for many situations.
Yet we all know that via the branch of science called human growth and development (a sub-section of psychology in some regards) that intentional or otherwise in many cases: that is indeed what we do in part because as children and later through out all our years with our parents and others even into adulthood as our goals change we find it to be a useful learning tool and a useful social tool, seeking acceptance is a natural urge, in some cases seeking supremacy or dominance also is, if not on anything but a sub-conscious level (hence my comment to the ego).
Recognizing that in ourselves gives us a better perspective from which to proceed.
Based solely off what you have said so far: It sounds as if you have already decided or are heavily leaning towards such a decision that you must somehow tell them, and are here seeking either approval of that decision, or a means of doing so/ weighing your options etc so to speak.
Which to me is a good thing.
All I'm doing is advising some further self examination on the issue and perhaps hopefully a different perspective from which you can base your decision.
In any event I shall pray that whatever you decide it works out for the best for you and yours.