A degree is required for some roles, while others depend on different combinations of training, licenses, experience, or demonstrated ability. The useful question is what the particular work requires, not whether every career follows the same educational route.
Look at several current descriptions of roles that interest you and separate required qualifications from preferences. Then compare those requirements with what you can honestly demonstrate and what you would need to learn. Avoid anyone promising that a short course guarantees a job. A realistic path starts with the actual entry requirements.