I can only speak for myself, but I have an opinion. I have had a CDL since I was 16, and I also have a college degree. I used to drive in the summers, and I loved it.
My philosophy has always been that, if all else failed I could always get a job driving somewhere, for somebody. We all know the want ads are full of driving jobs. I started as a DSR at Con-Way (though I'm not anymore), and I'd like to think it was experience and a record of safety that helped get the job, but once I was hired, after a time it was that experience combined with the proven aptitude and social skills that helped me advance.
I really regret Con-Way dropped the tuition reimbursement policy, because I would be using it. I fully believe in continuing to learn throughout your life. I am currently taking university classes online, at my own expense, in an effort to continually broaden my knowledge.
Currently, they are very reluctant to hire any FOS who doesn't have a college degree. That baffles me, because from what I see, you don't need one to be an FOS. That's no insult to current ones without a degree, I've known FOSs who have degrees and those who don't, and either way...some guys suck at it, and some don't. The degree has little to do with it.
To get back to the question, I'd only hire DSRs with at least a year of driving experience. I'd like to see experienced DSRs get first chance at becoming FOSs, if they want it, but understand that it's usually a pay cut for them, and that is why Con-Way hires outsiders for those jobs. Often inexperienced people, fresh out of college, who come with a steep learning curve, which can make for some tense times when dealing with guys who've been doing this 5-10+ years, and here's a new guy telling them how to do their job, when he's been at it 3 weeks.
I try not to get stressed out. Come to work, do what I can, stay out of trouble, and go home.