There are many different varieties of fruit juice. They're not hard to obtain, and you can even make your own if you're prepared to buy a lot of fresh fruit and put in a little effort to juice them. Either that or just buy a juicer.
What was it that made Minute Maid Fruit Juice so special, then? Why did kids go crazy for it? It's the obvious answer; their fruit juice was full to the brim with crazy doses of sugar. There's no way this was good for you!