When you request 'free samples', don't ypu have to fill out a questionaire about your company, position, education, area of industry... Obviously if you answered honestly, you most likely wouldn't get the samples. This is what implies that you have the capacity to place an order, if the chips fit your needs.
It's nothing like grocery store hand outs. Don't know about Canada, but here in America, there are tens of thousands of people abusing the public assistance hand outs, with that sort of attitude. Just because something is 'free', doesn't imply you are entitled to it.
Now, why won't your parents help? Cost with shipping is under $5 USD (maybe $9 Canadian...). For a kid, learning a respectable trade, it's well worth it. But. considering your views and attitude, guessing your parents would be upset, if they caught you paying for something that you could have scammed for free.
I can understand not handing a kid your credit card (for any reason), but for a manufacturers website? Don't know why I waste so much time preaching morality here. Ever thought that they don't accept Paypal, to filter out freeloaders?