For letting the users purchase the course you need to put the price to your course,
Follow the step given LearnDash LMS >> Courses >> settings >> Check button Buy Now >> set price >> update
Now, view the site.

For letting the users purchase the course you need to put the price to your course,
Follow the step given LearnDash LMS >> Courses >> settings >> Check button Buy Now >> set price >> update
Now, view the site.