Ignorance is bliss

This sign appears next to escalators in the Hong Kong Airport.

What they meant was, “Make sure that you help children and elderly people navigate this escalator safely.” (True, my long version would not work in that space.) However, the translator’s lack of knowledge of the finer points of English may have been a good thing. Perhaps this sign caused a few English mother-tongue speakers to increase their caring for the children and elderly with them.