I didn't claim "danger", though I guess you could infer that from my use of "safe" - so fair enough.
There's a myriad of stuff I'm alluding to, but some basics might involve promiscuity or substance use, though those are pretty egregious examples.
Others might be in dating, parties, curfew, the kids' recreational activities permissions, and other things of this nature. I'd also add financial management to the list, in terms of budgeting.
I remember well some of the very liberal (read: hippie-type ) mothers raising my friends when growing-up, vs my Conservative parents. At 15, I thought those kids' parents were cool, and mine absolutely sucked. By 19 I realized many of those really liberal parents were a poor influence in many manners of their kids life, assisting their kids in gravitating to destructive personal behaviours that had negative impacts on their lives.