The default path is a “script” of decisions and accomplishments needed to be seen as a successful adult. For example
good grades -> good job -> own a home -> have a family
The Pathless Path on the other hand, is experimenting on your own to find a life you want to live vs “getting ahead” on a script others follow – embracing uncertainty & discomfort vs planning/conforming.
People follow the default path to be seen as “successful” (e.g. career, great job) and avoid the uncertainty & overwhelm that comes with figuring what they really want in life.
Read more in the book The Pathless Path (Paul Millerd).