He would seem to be an apprentice employee, in that you say he is paid a wage.
Grants? - I very much doubt it. Government policy moved away from grants many years ago. There are various career development loans one can take out - these get repaid after one is trained. Google the phrase and see what comes up.
Bursaries? - possibly, but the best source of specific info on his will be from the college itself. I assume he is either at Greenhithe in Kent, or Pangbourne College, Berkshire? If there are bursaries, the college itself will know how to apply for them.