a while back i was a passenger in my dad's car, driving past Lancaster university along the A6. "This bloody annoys me..." Dad said, referring to a cyclist using the A6 and headed for Lancaster. "...there's a cycle path up there!" he added, referring to the cycle route which runs from the Uni into town that uses a mixture of shared use paths and residential 'back' roads.
"Well, there's a motorway over there too... why aren't you using it?" I replied.
Dad's house is a lot closer the north Lancaster junction, yet he always uses the south Junction as he'd rather drive through town then use the final few miles of motorway... that is his right, as is ours to choose whether or not to use a cycle lane.