Estate planning is also about protecting yourself during your lifetime, not just distributing assets after death. It ensures that your wishes are honored if you ever become unable to make decisions on your own.
One thing is for certain. Life is full of uncertainty. Natural disasters, disruption in the economy, and illnesses can lead to loss of property, jobs, health, and, yes, even death.
It is important to plan ahead in case you ever become unable to make medical or financial decisions on your own.