There are dozens of classic games that you can play with zero equipment. They're not only great for kids but they also work for adults when you turn them into drinking games (or not, depending on your crowd) and even teens on occasion! Some of these might give off Squid Game vibes but all of them are simple enough to play at most locations with little to no prep work.
Games like Mother, May I? and Red Light, Green Light are games that can be played from a distance, making them perfect for activities outside any time of year. Charades and various forms of tag also fit the bill, although it can be difficult to distance while playing tag. Flashlight tag is a great alternative if you're worried about touching one another.
What games do you like to play that don't require any prep work or equipment? Share them in the chat.