If your child is over 16 and doing an apprenticeship, you will no longer receive child benefit for that child. This is because the law states that you can only continue to receive child benefit for a child over 16 if they are in full-time education or unpaid training. These include:
A levels
T levels
Scottish Highers
NVQs and other vocational qualifications up to level 3
Home education
traineeships in England
Foundation Apprenticeships or Traineeships in Wales
Employability Fund programmes in Scotland