All of this is really stupid. If you truly feel this way, then I hope teenagers feel the same way about you when you're old and feeble. Old people don't have to contribute anything to society because they have done so there entire adult lives. They've worked in jobs which most of them probably hated so they could take care of ungrateful kids and pay taxes so the education system would continue to be funded so that immature, unappreciative kids could continue to learn. Jobs of today aren't as manually tedious as they used to be thanks to technological innovations. And even with the edit to your post after you realized how idiotic all you posted was, it still doesn't make up for all you said. Sure, old people can have there quirks, but I think after 40+ years of working, they have the right to be a little strange. I'm sure your grandparents aren't completely 'normal', they lived through a different time era, and probably have lived lives much tougher then yours will be. As for me, I let old people be and have compassion for them, because they can no longer do most things that we, in our young age, take for granted. Sure, most can be a nuisance, but haven't they earned the right to be after having worked there entire lives while you barely know the definition of hard work?