Painting and normal wear and tear

[Lorelai Gilmore]

My tenants have been in the unit for 4 years and they're moving out soon. The walls were professionally freshly painted before they moved in and now they're thrashed. Every single inch (or it feels like that) of the walls have a mark, smudge, or indentation on it in the common areas. The furniture, especially dining room chairs have been propped up against the wall and scraped the wall behind it with indentations, drawing on walls with crayons that they've erased with cloth but now they have smudges, etc.

Are they responsible for any of this? 4 years seems like a long time on one hand, however I've lived in places that long and the walls looked nothing like that. Not even 1/10th of the dirt and indentations. This does not feel like normal wear and tear.

I was hoping to only do minor touch ups, but the way they are it needs complete paint job.