I am not one of those "highly educated parents", but I hope that doesn't disqualify me from expressing an opinion. Firstly, such smart parents probably know that these days job placement is just as much of a priority as education itself. So, being that smart, they would probably pull some social/professional strings long before their kid's graduation to get her at least a job that's dignifying enough - until she finds a job of her profession. That would also help the kid to get some hands-on skills in the work force.
Secondly, depending on the mentality of the kid, she may want to take a break before starting any job - which parents can surely afford. Or, she may be a type to quickly fall in love with doing nothing and so go "intellectually rusty" - in which case she would benefit from being urged to do something - anything other than partying.
Sometimes kids get an additional ambition to find a job in their profession if they have to do a "Mac-job" for a while. So, these aspects of the question are subject to individuality of the kid and discretion of parents. meaning that it's hard to generalize about it.