It's still his car and still his choice if he wants DRLs or not.
FWIW, I have discussed this with Manitoba Public Insurance... (in Canada DRLs became mandatory in 1990)... and they charge the same rates for
1989-90-91 Berettas and the same rates for 1989-90-91 Camaros, so it's showing me that they don't see a decrease in collision rates for those cars. They've referred me to the Insurance Bureau of Canada... I feel I'm either entitled to a discount for my "safer" Beretta (1990) with DRL's or that DRL's are going to be proven to be a non-issue for saving lives.And FWIW, I think DRL's on two lane highways are good. But they are pointless in rush hour, which is where I spend 90% of my driving, so that's why I've disabled them. I know where the headlight switch is and I know when it needs to be used.
Ray