3 The appellant was 23 years old at the time of the collision and 26 years old when his damages were assessed. At the time of the collision he was unemployed by choice. He left school when he was 15 years old. Thereafter he was unemployed or underemployed by choice for much of the time. He had worked with a panelbeater as a trainee, and then with a manufacturer of screen doors and blinds. He had undertaken a six month landcare and environment course that involved laying garden beds, planting trees, chemical spraying, bricklaying and the like. He had worked part-time as a night filler at a supermarket. He had undertaken fruit picking, gardening, cleaning work, and other odd jobs. The learned trial judge found that he was fit to return to his former occupations by about the end of March 2004. However his future earning capacity was impaired in two respects. Because of a possibility of early degenerative changes in his knees and hips occurring in his 50s, rather than in his 70s, he was no longer ideally suited for heavy physical work. Because of his head injury, he had a continuing mild impairment of certain intellectual processes. However he retained strengths in the areas of reading, general knowledge, and vocabulary, and those strengths continued to give him an advantage in the ability to obtain employment in a variety of areas. The learned trial judge faced a difficult task in assessing damages for the impairment of the appellant's future earning capacity because of his having been unemployed and underemployed by choice for much of the time since he left school.