"Death always comes without knocking" (Margaret Atwood)
Particularly in these times of pandemic, deadly infections and uncertainty, no one can ever say with any confidence that we will still be alive tomorrow, or next month, or next year.
Now more than ever having a valid and updated will in place is no luxury to be attended to "when I have the time" or "when I am older".
The risk is that without a proper will (your "Final Will and Testament") you die "intestate", in which event the law and not you decides which of your heirs gets what from your estate. You have forfeited your right to ensure that your loved ones are properly looked after when you are gone. You have lost your right to decide how your assets will be distributed on your death. And you have no say in who will wind up your estate as Executor. Executing a valid will is the only way to avoid all that.
Then - just as importantly - once you have your will done and dusted, avoid the very common mistake of forgetting to update it regularly.