madmum5811 - I'd say it's not the parents fault. Students who are 17/18 and bright enough to go to uni, should be on top of this themselves assuming the school are giving them support.
DD has spent hours in the holidays trawling through university websites. She started off the uni visiting herself with a friend by going to LSE (two hours away), which confirmed she didn't want a London uni. Also, our local one - the course wasn't right and the uni being quite small didn't offer her much socially.
We then got onboard and have taken her to two open days and also visited St Andrews and Edinburgh unis as they're a long way from home and I wanted her to have some idea of what journey involved and where she'd be based. The only one she hasn't visited is Durham.
Regarding the application, all we've done is comment on her PS. On top of the school supporting her with this, she's also taken it to two relevant teachers for the types of course she's interested in to comment.