Don't always assume that just because a person who is young gets out of the car that they don't have a disability. I may look perfectly fine to you when I get out of my car but have multiple scars and problems from my 5 unsuccessful back surgeries! I know there are people who abuse the system and it burns me up as well. It's just that you can't always tell who has a problem and who doesn't. If there is a relatively close spot I will park there and leave the HC spot for someone worse off, but if it is a bad day for me and there is no other close space I will use my tags.