What's the difference between Beer and Root Beer? I never understood the difference between the two drinks.

You're kidding. 

One gets you drunk.  The other goes good with vanilla ice cream.

One is made out of roots from a tree and the other is made from cow poop

One is made out of roots from a tree and the other is made from cow poop

You make them sound so appetizing

One is made out of roots from a tree and the other is made from cow poop

 

That's essentially why I haven't drank any alcohol since my eighteenth birthday.

One is alchoholic the other is not, root beer being the sensible choice if you dont want to get drunk

Root beer is delicious and won't give you a beer gut

Beer is disgusting and gives you a beer gut.

Root Beer is a soda.

 

Regular Beer is alchahol and you need a licence to buy one.