The best mode to show you the importance of stair nosing for your home or business would be to have you walk up and down the staircase that does not have nosing. You would be required to walk and down the staircase to the one, that has installed nosing. It would help you understand the difference between the two.
The flights would have a similar kind of tread and riser sizes to make sure that you would be able to compare the two experiences properly. You would come across the difference between the two that would help you understand the need for stair nosing. The one installed with stair nosing would be relatively safer than the other one.