Re: Baby proof - half wall
I would agree with Dave, a half wall is as safe, if not safer, than a railing system. If her kids are that boisterous that they'd climb the darned thing, then she needs to think about teaching her kids to behave, hiring a nanny, or straight jackets for the little critters. Oh, and she should keep them away from the internet where they might see videos of stupid stunts that would give them ideas.
Ok, on the serious side, as Mattie suggests, a glass wall - similar to what you'd find on an escalator - would be both aesthetic and functional. I've installed plexiglass panels on wrought iron banisters to keep kids from poking their heads through, your friend could do a similar thing. Wrought iron work would also be decorative and functional. A dressing screen could be fastened to the wall to keep the kids away from the half wall altogether.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!