What's strange to me about this thread is that so many women do their husband's laundry in the first place. I had no idea. I have never done my DH's laundry and don't intend to.
LOL -- I was thinking along the lines of that too. DH does his own laundry too. His = the same amount of mine + dd's together. That's a lot.
But I wouldn't go out of my way to NOT do his laundry if it's already in the sorter mixed in with the rest. Actually, I'd be too much in shock since he always totes his in from his man-cave.
To the OP. Your dh knows in his lizard brain that it's unsafe to have "A CHILD" improperly harnessed. Somehow you have to get it into his head that this is HIS DAUGHTER, not some strange kid. You can watch all the crash tests in the world, but until he imprints your daughter's face & body into that seat, it's not going to do much good.
DH thought I was nuts about the whole issue of safety until he was able to personalize how he would feel if our dd was seriously injured or DEAD. Somehow he had to transfer her face onto the crash test dummies or dead children to make it possible that this could happen to her.
Nothing I said or did made any difference until HE chose to view it in this aspect. I don't know when there was this epiphany, but one day, he decided it was RIGHT to do this for his dd. Not that I was right... but that the situation was the ethical thing to do as a parent.
He still can't install a carseat (which frustrates the heck out of him more than me
), but he knows that it is imperative as a parent he gets her in that seat correctly.
Even now, he makes quiet snide remarks at coworkers when they brag about how quickly their children have moved into boosters. He knows better than to lecture. Mockery about not thinking your 3 year old kid's life is worth more than a $30 backless booster works more effectively.
If it were me, I'd take a page out of my dh's book... and I have with him. When I go to unharness dd during the first few months and it was incorrect, I'd just stand there with the slack held up in my hand and let him look. HE"D be the one all defensive and upset, not me. A thousand meta-meanings in one wife's look.
Now dd's old enough to tell him, "Tighter daddy, I have to be safe!"
Gotta love them 4 year olds.