(((Griffe))) I try to view it from another angle, because even when I'm out in a wheelchair, I look at others and their chairs too.

People who are too busy to care will not notice me or anyone.
Some people have a loved one in a wheelchair, and are comparing (maybe me, and maybe the chair, maybe how it works for me or doesn't?)
Most people don't want to ignore me, but don't know what to say and in the space of time they are thinking of something to say, they are "staring."

I'm not young, but maybe they are adding empathy for you, being young, and you can latch onto that energy and use it.
When I look at someone, usually it's close by and I am reviewing the chair. Often I ask questions about the chair too.

It's difficult for others to begin conversations to begin with, now add that I'm sitting at their knee level.. it's can just be awkward, you know?

Yes, some people stare because they are rude and inconsiderate. Usually these people will also make stupid comments, showing that their life is truly all about them only.