You are correct but taking all the railings off certainly results in more straying who might not have.
Some kids are fine with the railings off, mine were. I was naive, anxious about being in college, worried about whether I would get a date, just young. I needed every protection there was and am glad I got it.
Ultimately it is their life and we all live in the same society. We can do our best, but must be prepared for the worst. Which I beleive is the case with the victim and his family in this case