That’s awful. Here in Ontario they have a graduated license program where when you first get it as a teen there are restrictions and I think such a scenario where 6 teen girls in a car would be one of them. Not that that can’t be ignored but it does provide some guidance for young drivers.
It depends on their age. My 16-year-old son can drive only before 9:00 p.m. and can’t have more then one other youth in the car unless only siblings are with him. However, my 18-year-old son has no restrictions.
They went to driver’s ed together, got their permits the same day, licenses the same day, etc. It’s just the age.
I know that in my old state of Maryland — I just moved to Florida — that Drivers Licenses for people under 18 were provisional for 6 months, then if there were no infractions, it could become a full license. Restrictions included no driving between 1 and 6 am.
I got my provisional, then some time later got pulled over for speeding at age 17, so that extended the provisional license for another six months. That was in 1984. so licensing requirements may have changed over the nearly-40-year span since then.