Depending on where you live, it can be.  In the United States, for instance, it can be difficult to get avocado trees to bear fruit because the temperatures often get too cold. If, however, you live in a warmer climate, or simply want to plant an avocado tree just for your own enjoyment, then you can certainly try planting an avocado tree to see what happens.  Bear in mind that you can also opt to grow avocados indoors. Doing so will require a bit of preparation ahead of time, as you must carefully consider the placement of your tree and other parameters, however, it is fairly easy to grow an avocado tree indoors.