There is no question that some people feel getting rid of old stretch marks is absolutely necessary while others look upon it as not very important. Overall, perhaps it is best to say that if you feel it is important to get rid of them, then you should make it your business to do so. At the very least, you can start by finding out what treatment options are available as well as their cost.
No matter how you look at it, once these marks start to appear, they will change the way you feel about yourself as much as they change the way you look. When you reach a point in your life when these matters become important, then you should seriously consider removing old marks. That said, as long as they do not cause physical pain or interfere with daily activities you might just as well leave them alone and save both time and money.