However.
When you are not being a dozey git who is leaning on the handrail (with your eyes shut like Seb on the motorway perhaps) and your hand keeps slowly dragging off in front of you..... it's ANNOYING!
I know I said "hand" above, but I did - of course - mean scrotum.
I've done work for companies where not holding onto a handrail on the stairs (and I expect escalators if they had them) is grounds for instant dismissal.