Leo, NO!! Signage is only to cover your arse from lawsuits. These people don't heed signage. Apples to orange comparison but take one of my favorite places, White Mts. NH. I've been climbing there for almost 35 years, over 50 winter ascents of Mt. Washington via multiple routes; some ice gullies and some less technical routes. World's deadliest mountain. Over those years more and more signage notifying of the dangers was erected and it hasn't stopped those "less inclined cognitively" from some of the absolute ignorant decisions made. The rescues are pathetic and a high % is from people completely unprepared for the weather that this mountain is known for. I mean, come on!! If you plan on a Himalayan trip you come here to train.
Ignorance is bliss, until it isn't.