Makes sense but... I actually think the exact opposite.
For me the perfect password is one that you type the consecutive characters alternating between left and right hand.
Words that you type with just one hand you do a little 'twist' with the hand that, IMO, is a little slower and uncomfortable to do. As soon your finger reach a key the other hand is already moving to the next and this goes back and forth.
But I guess I'm making a point more about comfort than laziness.
I see what you're saying. I think the one-handed-password people mainly did it so that they could do something else with the other hand, like hold a cup of coffee, flick through the newspaper, that sort of thing. Seems like madness to me but there you go.
For me the perfect password is one that you type the consecutive characters alternating between left and right hand.
Words that you type with just one hand you do a little 'twist' with the hand that, IMO, is a little slower and uncomfortable to do. As soon your finger reach a key the other hand is already moving to the next and this goes back and forth.
But I guess I'm making a point more about comfort than laziness.