Improper usage of Retweet

I was just reading through my feeds on twitter which I haven’t done in a while and noticed that people are going crazy with the retweet function. I don’t understand why on earth would you retweet someone else’s status update about their day or when the original poster is sharing their personal emotion? My understanding of retweeting someone’s update is if it has useful information that u would like to share with others. Other than that, you’re just an idiot with no soul. The end.