Miners can choose what transactions they want to include. If they don't want to include any transactions other than the one that pays them their 25 BTC, then that's their choice.
so if they all choose to not include transactions we wouldnt be able to send coins?
If by "they" you mean every single person currently mining bitcoin got together in a dark room...Yep, we're relying on the benevolence of a few in a world full of people motivated by greed.