adult adults alert child childcare children concern directing monitoring protect protection protective risk risky safeguard safety security sign supervised supervising supervision warning wary watching young active activities adult-supervision appropriate-behavior appropriate-behaviour children’s-playcenter communicating communication equipment fun informing inside interior kids leisure light limitations limited limits parent-supervision parental-responsibility parents play playcenter playcentre playing requirement rides rules suburban adventure adventurous care children’s-playground climbing community designed enjoying enjoyment families move movement moving park parks planned play-area playground prepared recreation recreational sand sandpits shade shaded shadows sheltered slides sunlight sunshine supervise swings trees variety