How ? I never found the option to enroll online.
With Discover University and High School Years, a teen sim has the option to take online classes and receive their high school diploma in order to enter university.
Discover University EP and High School Years EP combined allows a drop out or expelled teen with high skill levels to receive a diploma online if you own both. You can even graduate early and attend college as a teen with Discover University and High School Years.
I have 4 high school aged sims living in a dorm in Britechester in my main save. They all graduated early with the Discover University EP and High School Years EP which allowed them to attend college as teens.
