If technology never advances and humanity stagnates for the next thousand years. Then yes i agree that pursuing r&d into driverless vehicles is pointless.
However, given that technology does advance and evolve over the decades and centuries.... you guys cant honestly think that the shipping industry isnt heading that way.
But we need to be careful in how we proceed. We need to have a plan in place for how an economy will operate without wage earners. As things are now, if total automation happened tomorrow, only the owners of the means of production would have any access to economic participation. That would lead to massive social upheaval on a scale never before seen.
The way we are approaching automation now, and the pace of automation, is certainly causing growing pains, but we should have time to work out the kinks. If we do it right, complete automation could be the single greatest achievement of humanity, but we'll probably find some way to screw it up. I'm not so afraid of an AI uprising as I am of how billions of people will choose to spend their time when they no longer need to work.