Carrying a PLB or satellite communicator is not a bad idea, but there is a huge obstacle for many people to obtain one: They cost a fair bit of money. I believe the Inreach devices are ~$400USD, plus a minimum subscription of ~12/month. That's not realistic for a lot of people.

People have been successfully & safely travelling the wilderness for centuries without these devices. If you have solid wilderness skills, and take appropriate precautions, there is nothing unsafe about exploring the wilderness, with or without a PLB.