Get back to day games...
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The majority of adults work during the daytime. In the Spring and Fall games, kids are in school during daytime.
In areas like AZ and TX, the daytime temperatures during the Summer are often over 100*. Unless games are played in domes, the temps are brutal for the players and fans.
Arizona has a retractable roof for the Diamond Backs.
Houston is on its second dome stadium.
Domed stadiums will also eliminate games cancelled due to rain.