<human>: For me personally, it's lack of cleanliness.

I'm a new college student and this is the first time I've lived with people other than my family. The level of uncleanliness that my roommates allow their things to reach is unbelievable. 

I've cleaned our shared toilet three times now, and every single time it is stained with piss within a day or two. They constantly leave toothpaste drippings and I'm pretty sure they've never heard of sweeping the tile floor among other things. Cool guys, it's just the cleanliness thing is something they're going to have to learn to improve when they're living on their own. That's the end of my ranting...

Can you summarize the given text in a few sentences?
<bot>: So that got me thinking: what to you, Reddit, is a sign that a person clearly has some more maturing to do ?