That’s completely different to the issue at hand though. It’s not as though the DH will be going to ‘a big social event’ alone though if there are other people from work. I’m guessing there will be a ‘work table’. If not, or if he doesn’t like his work colleagues then he is free to decline, obviously. All of that is seperate to his wife not being invited though. As for having to be a kid to want to have a few drinks with work colleagues, that’s really not a universal truth. I’ve always cherished the rare nights off where, as work colleagues, we can have drinks and a good time together. Why would he want to sit with his wife the whole night anyway? At the odd times we’ve been at weddings together, it’s because we both know people, so we are both busy off catching up with people and often just see each other to physically eat, and even then if we are having a good natter to people, we swap seats at the table sitting apart to better enable this.
As for the time commitment, if he doesn’t have, or want to spend the time, then that’s absolutely fine, he simply declines. Again, nothing to do with his wife not being invited though, unless you are somehow tying in that the time away means he is not spending that time with his wife? If do, that would be odd as, assuming they live together, I imagine they spend plenty of time together otherwise, surely a day or weekend won’t hurt🤷♀️.
As to his comfort, and lack of, you have lost me there. Been to plenty of weddings on my own, as has DH, there has never been any issue with lack of comfort, so no idea what this is on about. Again, if it’s something like a 10 hour drive and he doesn’t want to do that without a driver swap, fair enough and fair enough for him to decline the invite. If it was me though, I’d be happy to share the driving with DH, stay in a nice hotel room, read a book, watch movies, have room service, bit of a self-pamper while drinking fizz while he is at the wedding and share the drive back the next day. Wouldn’t have worked when our kids were young admittedly and in that scenario, if he couldn’t car pool with people he knew going, he would have politely declined. But that’s not because I wasn’t invited, just due to logistical issues.