Establish policies, plans, and programs that meet the needs of all residents of a community, especially children and older adults, and promote interaction and cooperation between individuals of different generations
Allow community members to gather, socialize, walk, run, bike, skate, etc. on streets temporarily to closed to motorized traffic; also called Ciclovía programs
Restrict full contact between youth football players via limits to the number of contact practices, head hits per player, delay tackling until a certain age, etc.