From young to old, in most cases anyone can get together for a fun activity. Many outdoor activities cannot be done by young or old people, many more limitations are imposed on them due to their mental or physical abilities. While kids might not be able to do everything inside yet, they could at least sit, watch, and learn. Whereas if a child wants to do something outside and is simply too young, the only factor stopping them is time. Staying indoors is obviously safer than being outdoors, I'm not saying going out is dangerous, but the weather can be very unpredictable at times. Heat and cold are a determining factor in the weather, otherwise children and the elderly cannot go out. Indoor activities are suitable for any age group in summer because it can be too hot outside, this is especially difficult for older people because they are more susceptible to heat stroke and other heat-related illnesses. The cold can also be harmful and, in the worst cases, cause frostbite or other serious illnesses