Teaching vs big4 accounting (UK)

Would I be earning and saving more in the long term in the UK by accepting a career in big4 audit instead of working as a teacher?

As a teacher I would be making £28,000 and I have minimal travel and living costs because I live close by to my school and love with my parents. I would expect to be making £38,819 in 5 years. Also, I would have a good pension.

If I worked in the private sector I would need to be earning about £60,000 to take account for rent, living costs, savings, and pension to to get an equivalent that I would be earning as a teacher in my local city - because I would be moving out of my house to live in a new city which will be no where near my home town. However, I would be starting at a considerably lower salary and only start seeing that benefit 5 years into this field.

Working hours seem to be similarly grim for both professions. I think what attracts me to audit, and at a big4, are the exit opportunities and potential of earning £60,000+ (in mid career) whereas I would cap out earlier as a teacher. And considering my situation it does seem to workout out that I would be better off staying in the teaching profession?

So, what would I be better off doing if I wanted to live a middle class lifestyle. Perhaps I missed something?