Not enough people do that anymore. I don't ever remember whining and begging for things, I know that I would have whined and complained, but if we were told that we couldn't have something, that was the end of it. We would be grocery shopping and would see all the candy and chocolate, but knew better than to pester the parents for it.
Anytime I'm taking care of kids, if they fight over something, it's mine. If they whine for something, they don't get it. But I certainly won't deny kids from having anything. When I'm able to, I like to get my niece and nephew some pretty good birthday/Christmas presents, or take them somewhere to do cool things. Any presents that I do get them are usually something they need, like clothes/shoes/sports equipment. But, just buying basic shoes is boring. Elizabeth knows that her Aunt will usually buy the sparkly pink shoes.