Answer: there were not a lot of safe places kids could play
Step-by-step explanation:
i got it right.
The problem led to playgrounds becoming more common in America cities is: Due to unsafe places.
Playgrounds is a safe place that is specifically set aside for children to play.
Playgrounds can tend to contribute to a child social growth when the child plays among is age group or peer group.
Playgrounds is common in America in order to prevent danger and injury because there were not safe places for children to play.
Therefore the problem led to playgrounds becoming more common in America cities is: Due to unsafe places.
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