This is a wonderful idea to have instead of a lawn. Imagine growing all the food you could want in your front and back yard instead of having a lawn you have to mow. This will also help cut down on your grocery bills!
Gardening really is not as hard as some like to think it is. As long as you read about the amount of light and right about of water plants will grow. So think about replacing your yard with a raised box garden like this! Plus your vegetables will be market fresh and YOU will decide what goes into growing them. This can help allow families who want to eat more organic foods afford to do so. Plus you are adding more green to the world... which will help the planet!