In Chicago, Downtown Day allows teens to feel welcome, safe and seen in the city, but many say they wish that was the case year-round. They expressed that opinion on Saturday at the annual event, which brings more than 1,000 young people from the South and West Sides into the city for workshops, tours and activities. The initiative is hosted by youth empowerment nonprofit My Block, My Hood, My City, which partners with more than 30 businesses and organizations, including the Art Institute of…