I have no issue with a college student at least attempting to work. To say they have no time is kind of a cop out IMO.
My DH is self employed and works 7 days a week, sometimes 10-12 hours per day (his business is on our property). I myself work 50 hours per week and commute 2 hours per day and also managed to get my degree while doing so. In all of this time I managed to never miss a concert, a dance recital, a doctor appointment, or conference. When my girls were young I worked nights (working in International Banking this can be accomplished) so they did not have to go to daycare (and I know others who have done the same). The payoff for all of this is that we are completely debt free (never even had a car payment), our home is paid off, we have excellent health insurance, and we have at least two years salary saved as a fallback.
My point is that while yes, while some might say that maybe DH and I work too much, that it is not wrong for a college student to work and go to school (yes, there is time for one shift a week at McD's or Denny's) or for a young adult to have to work two jobs for awhile in order to get a financial footing. It might just be the way things have to be. Teach a man to fish and all...
We never received a cent from either of our parents, paid for our own vacations without incurring debt (we just didn't go anywhere we could not afford), and paid for our own wedding (again within our financial limits).
Our way is not the best way, or the only way and while my kids have certainly been handed a little more than we have neither my DH and I are resentful of working our way through to our goals. It was a choice, had we asked DH's parents for help they would have given it but we feel a huge sense of pride in knowing what we have accomplished and we want our children to be able to feel that way one day as well.