So as part of my 'first-day-of-classes' spiel, I mention that I change more than my share of diapers while at home, so I rather expect my students to behave as through they are (metaphorically) potty-trained. I say (and have a power-point slide to back me up, so you know it's serious) 'Since you have been admitted to this university, I expect that you are at least 17 years old, and therefore an adult. I expect you to comport yourself as such.'
Now, let us pretend for a moment that they all know what the word 'comport' means. The thing is, one of my sections is made up almost entirely of brand-spankin'-new freshmen. (Are we calling them fresh-people these days?) They need their hands held for every task I expect them to accomplish.
In some ways, it is exactly like parenting a toddler.