Sorry, don't like to generalise but the insurance premiums and recent facts are plain to see published by Brake.
Young drivers: the hard facts
There is a wealth of research and casualty data showing that young drivers - particularly young male drivers - are at a much higher risk of crashing than older drivers. They are therefore more at risk of losing their lives or being seriously injured on the road, often killing or injuring their young passengers or other road users too. Road crashes are the biggest single killer of young people in the UK and worldwide
[1]. Young drivers are involved in in in four fatal and serious crashes, despite only making up one in eight driver licence holders
[2].Other data from the UK shows that:
An 18-year-old driver is more than three times as likely to be involved in a crash as a 48 year-old
[3] One in five new drivers has a crash within six months of passing their test
[4] Young male drivers have much higher crash rates than young female drivers.
[5]. Young male drivers aged 17-20 are seven times more at risk than all male drivers - but between the hours of 2am and 5am their risk is 17 times higher.
I'm looking at different training strategies now - pass plus looks quite a good scheme if she does pass her her test next month - I've found a wealth of material on the net.