In my opinion, your parents are asking the wrong question. It should be: "Why don't we talk to our son, more frequently?".
I think it's the parent's responsibility to raise the child.
When you plant, do you just put a seed in some dirt, and expect something to happen?
Sure, it could work out;
But if we compare the results from doing that (nothing), with the results, of actively taking care of the plant - such as watering, etc. - which one do you think will grow better?
If you mold clay, or make a sculpture, you actively work on it. You don't ask the piece of clay: "What do you want?"; "What do you want to be?".
You first mold it. Then, it comes to life. And THEN, it begins to think on its own.
Did Pygmalion's statue just randomly come into being? No... he made her. And then, she came alive. She didn't just carve herself.
Why ANYONE thinks otherwise, is beyond my capabilities to understand.
That being said. Your sculptor is trash. So will you resort to being trash? Or will you take hold of your own destiny?
Because you are not a pile of mud, or a large slab of rock.
As for the flower analogy...
Will you shrivel up and die, because of the negligence exercised by your planter?
Or will you fight the forces of nature, and become something so beautiful, that the world will appreciate, and look on to, with wonder?
Best of luck to you.