Don't just believe me - here are some statistics.
1. Association of British Insurers (my bold):
"Young drivers usually pay much more for
motor insurance than older, more experienced motorists. This is because drivers between the ages of 17 and 24 are much more likely to be involved in an
accident and make a
claim, so their premiums are higher as a result.
Young drivers account for just 12% of licence holders, but they are involved in 25% of all road deaths and serious accidents. One in five young drivers will be involved in a crash within six months of passing their driving test. Carrying passengers increases young drivers’ changes of being involved in a collision, with just three passengers almost tripling the chances of a crash."
https://www.abi.org.uk/products-and-issues/products/motor-insurance/young-drivers/
2. Be Wiser.
https://www.bewiser.co.uk/knowledge...ow-rating-factors-affect-your-motor-insurance
Young drivers pay the most for their insurance because they have the largest claims and because they have the most claims ("frequency"). Both statistics are despite the fact that a typical young driver will be driving a car that is very cheap to run and repair, and despite the fact that they typically drive much, much lower mileages than the middle-aged, and despite the fact that young drivers are increasingly having black boxes fitted that monitor their driving.
3. National Statistics
Again, despite the fact that young drivers tend to drive less than the rest of the population they are involved in significantly more road accidents. And they tend to get killed or seriously injured far more than the rest of us:
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/556406/rrcgb2015-02.pdf
Back at the start of the 20th century, when actuaries started analysing mortality, everything was pretty predictable. Neonatal mortality was extremely high, child mortality high and young adult mortality extremely low - young adults are extremely robust. As the diseases of middle- and old-age (cancer, heart disease, infectious diseases) started hitting, mortality gradually climbed with age. Then, sometime in the 1920s and 1930s, the statistics started showing something surprising - lots of young adults, and especially young men, were dying unexpectedly. It took a while before they realised that it was accidents, usually road accidents, that were causing this spike.
Since then we have done a lot to improve road safety, and that's benefitted everyone, including the young. But after suicide (which, shockingly, is now
the largest single cause of death for adults aged 20-34) it is accidental death - whether road accidents or poisoning (often by alcohol or drugs) that kills the young the most.
If I had teenage children the strongest piece of advice I'd give them to keep them safe would be not to get in a car driven by their friends.