"There are so many jobs out there in the next couple of years. It's your world," he said.
McDouall said he was on the unemployment benefit for three months when he returned from overseas 16 years ago "so I know how dispiriting it is".
Part time worked turned into fulltime work and he got on a roll.
"Sixteen years later I'm wearing a ridiculous robe like this, so who knows?"
Graduate Angel Skelton said it was challenging but she adjusted well.
"It made me grow in ways I didn't know I could," she said.
"Hopefully I get to study film and pursue my dreams and desires working in media and entertainment."
Jahzia Puohotaua had dreams of his name up in lights as a world great boxer but would join "the Navy for now".
He said the LSV course was "pretty hard out" with activities like push-ups 30 seconds after waking up at 5.30am.
"It was flat out all the time and we never had a chance to have a break.
"It was hard out but it was the ability to stick with it that I learned. I'm used to just not liking stuff and boosting - that's my forte."
Graduate Brie Karena-Koro missed the ceremony because she had already started work.
Work and Income says 70 per cent of trainees move from the jobseeker benefit into either full-time work or trade training courses within two months of completing the course.