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?
Correct. But if miners decide to make Bitcoin useless that way, they're also hurting their own profit. That is why these 1-transaction-blocks are quite rare fortunately.