Do you opt for the escalator even when there is a staircase beside it [although you know that walking up the stairs is better for your health]? You could have your own reasons to justify your action but take a moment to check out how a simple fun element brings about behavioral changes in most people, the outcome of which was definitely positive.
At the Odenplan Metro Station in Stockholm, the staircase was given a makeover to look like the keys of a piano. The Piano Staircase not only had the looks but also sounded when stepped on. An ongoing recording captured the striking change in selection between the escalator and the Piano Staircase.