An Apprenticeship is defined as:
"A paid job where the employee learns and gains valuable experiences. Alongside on-the-job training, apprentices spend at least 20% of their working hours completing classroom-based learning with a college, university or training provider which leads to a nationally recognised qualification."
https://www.apprenticeships.gov.uk/influencers/what-is-an-apprenticeship
In reality this means that the Apprentice, their employer and the training provider share the responsibility of ensuring the apprentice has the knowledge, skills and behaviours they need to work effectively.
The Training provider delivers the core off-the-job training
The Apprentice works hard to develop their knowledge
The Employer supports the Apprentices learning and ensures they gain the experience they need through on-the-job training