As an ex elder, I can tell you that there is no written rules about going to universities or any other training. There have been talks at halls, conventions and assemblies and magazines stating that we could be wasting our time by recieving extensive training for the job market when the new system was going to come soon anyway and we would not be using the skills we learned so we would be better off pioneering or going where the need is great or some other WT defined good works.
Because this has been spread throughout the organization it has been taken by the R&F as a rule or law. It is not and if one goes to a university even if it is away from home, they cannot be punished by the elder's. But they may be, depending on the EB, hounded and talked to about the wisdom of such a decision. That councel from the elders you can take or leave. Of course if you do not take it, you will be considered spiritually weak.and possibly judged by the rest of your congregation.
LD