Following multiple teens to high school

When following more than one teen to high school (High School Years expansion pack), additional teens (not first/main teen):

• High school tasks and interactions aren't available: they can't talk with the principal about school, for example
• They don't get daily performance report at the end of school day
• After 15:00, the "at school" icon on the Sim button remains until traveling out of school

Current system is clearly able to handle that, since you can see the week missions, holiday tasks, and high school task for the first teen. Managing high school tasks for different teens should be similar to handling tasks for social events across household sims.