I am, obviously, not a parent. If I was, at my age, that would be terrible. Even if I plan on being one someday.
I would, however, like to point out that Dalinar did not sit idly once he realized what was going on. Fist he went to the judge, commanding her to call off the match. When she refused, he was going to end it himself, only to be restrained by law. So he went and tried to find a Shardbearer to help. Only Kaladin stepped up, if he hadn't, though, I'm fairly certain Dalinar would have just jumped on down, even if he knew that the princedom and the kingdom both needed him and he was probably going to be throwing his life away.