Although training tends to be increasingly tied to the practical needs of employment and social life, education in some communities is still primarily academic and almost exclusively for youth. In communities where the major industry (possibly the very reason the community came into existence) closes down, schools are half empty as much of the population leaves. Without a close tie between the schools and local jobs, young people go elsewhere for further training and employment. The older people who are left behind are untrained for other work even if it were available and, as a result, they retire prematurely from the work force. Those who start their own businesses find themselves lacking modern management and marketing skills. Opportunities for retraining are either nonexistent or restricted to skills that are not applicable to the employment available.