1.... you need to be in torn to collect your certificate
Try getting a job without proving your qualified
2.... you have to attend your first class to show your ID to prove you are you and your not getting a smart person to take your class
With your auto enrolment... yeah that could be a thing but you would have to be in tore at some point to auto enrol in the next class
Education takes years... I finished my educations a few months ago, took me 5 years
Your suggestion will only save you a few days maybe a few weeks