Agreed! Don't wait. Waiting helps nobody! A will can always be changed. Worst case, at some point you thought the will was how you wanted things to be. Even if that changes, it won't change for the better. Just do it and do it with a lawyer. Tell anyone in it what lawyer it is with. There is NO public record of a will until death and it's not recorded until then. No guarantee that lawyer will be aware of your/their passing unless they are informed. Then, it gets recorded, but not before. This is a common misconception. Doing a will does not get it recorded. Only people that know about it are the ones told.Your son needs to do it now. Heaven forbid, what if you, your wife, your son all go at the same time??? He needs to plan for the worse, hope for the best.
You can change it at any time. Ask me how I know all this. No..don't.