Why is it a bad idea for the government to simply print more money to pay for its programs?

The only downsides I can see are inflation and the government running out of money. But if it's just printed, then the government will never run out of money. Even if inflation does become a problem, couldn't the government just print more money and give it to each of the citizens to make up for the inflation, so everyone could still buy the same amount of goods and services as they could before the inflation?