In the pre huggy-fluffy days, vertical metal ladders on the outside of buildings and towers were fitted with metal hoops to give the same feeling of security. Not allowed to climb them nowadays of course without multiple ropes and safety nets.
FFS you're now a huggy-fluffy (God how I detest that phrase) if you don't want to shin up a factory chimney without safety gear. I'm definitely one in that case, and can I have a parachute as well, please?