That depends how you define dangerous imo.
If you define it as not watching what you're doing and acting in a manner that's unsafe, I agree totally. But done safely and with due regard for the likely implications of not thinking about your actions I don't see it being any more dangerous than walking across a road. And having climbed on and off trailers for nigh-on 40 years without suffering any fatal or life changing injuries I might be possibly be doing it safely and correctly.
Having said that, if I don't have to climb I'd rather not, given that I'm no longer 18 years old.
If you define it as not watching what you're doing and acting in a manner that's unsafe, I agree totally. But done safely and with due regard for the likely implications of not thinking about your actions I don't see it being any more dangerous than walking across a road. And having climbed on and off trailers for nigh-on 40 years without suffering any fatal or life changing injuries I might be possibly be doing it safely and correctly.
Having said that, if I don't have to climb I'd rather not, given that I'm no longer 18 years old.