There was a little girl we lived next door to for a number of years. Our families were friendly.
When she was a teen, she was a front passenger in her boyfriend's car and she ended up dead. Even though we hadn't spoken to the family for about 10 years as we'd moved, we went to her funeral.
I will never forget the haunted look on her parents faces.
20 years later, it turns out that my brother lives near her brother and, by chance, they got friendly. That lad (and his parents) are still massively affected by her death. It's awful.
My brother learnt to drive and was in his late teens/early 20's in his first car. He got it on finance and he'd had it 3 weeks before he was racing his friend down country lanes and he crashed it.
The police officer told me Dad that if he'd gone one more metre, he'd have hit a tree head on he'd be dead!
My Dad went on and on about it for the next 10 years. Every time my brother did anything wrong, it would lead back to how reckless he was in that car.
The punishment was that he had to continue paying off that car for 5 years as he only had third party insurance. He could only afford old bangers after that for 15 years.
Based on these experiences, no getting in a car with a driver under the age of 25 for my kids until they've left home and decide for themselves.