The system is build as a training for just one type of work and nothing more. (if we are not talking about gymnasiums) So changing tracks means starting from ze

The system is build as a training for just one type of work and nothing more. (if we are not talking about gymnasiums) So changing tracks means starting from zero again. It is doable, but very few people want to start again in class full of 15 years old, second problem is money: there is nothing like student loans. Also society will view as a failure.