Why is there so much trash everywhere?

Hey everyone so I recently moved to Houston from Shreveport, LA. I love it here but one thing i’ve noticed is there is trash everywhere. Especially near I-45. I was wondering why the city doesn’t clean it or start a group to clean it. In Shreveport they would gather up the inmates and take them out in a van to clean up the trash. I’m not sure if it was for community service or what. Why doesn’t Houston do something like that?

Edit: I did not mean this post to offend anyone in any way. I absolutely love Houston. I wish people cared more and didn’t litter.