Trying a hobby should not require buying the entire hobby first

A beginner can go looking for a simple way to try something and end up facing specialist equipment, a membership and a long list of accessories. Borrowing, introductory sessions and community groups may help, but they are not always easy to find or accessible to everyone. What makes a hobby easy to sample before making a big commitment? We are interested in low-pressure first steps and welcoming spaces, including things people can do seated or at home. Expensive equipment recommendations can wait for another thread.