Asking frinds and family to click on your adsence

So google tells you NOT to put any place on your site or blog for people to click on your AdSense. I'm not sure why they would say this. Even if its someone you know that does the clicking, don't they have money? Don't they buy on-line? I would think they would WANT you to ask everyone that visits your site or blog to "click". The advertisers pay-per-click, you get payed per click or impression, and the chances of a sale rise every time someone new sees their product. If it were up to me I would tell everyone that came to my site to click. But its not. I just wanted to share my thoughts on AdSense. I feel the money is getting spread around, just not to the people who deserve it. If I have a website that generates its only income from AdSense then i rely on clicks, and the advertisers rely on clicks, so were is the money going? Not my account, well maybe its just me but it seems like a wast for the advertisers not to get the most from their money.