I've been wrestling around the same amount of time you have been coaching. I have seen wrestlers take an injury default and walk around fine five minutes later a few minutes later. I think if you could. By saying "hey you're injury defaulting you can't wrestle the rest of the day. Understand that." You're giving then mmm the option to choose. You're really allowing the wrestler to pick and choose what match they want to wrestle in with the ways the rules are now. "No I'm not good enough to wrestle and finish the match, but I can wrestle the next match." It softens the sports.
A story I have is this,
A year ago at Goshen Regionals first round one of the Gimson boys from Jimtown was winning his match by a wide margin. He got called for an illegal body slam, and this kid seemed hurt. I really respected what the East Noble coaches did... they knew their kid wouldn't be able to finish the match, but they started the time let it run one second and then stopped the time and then lost the match. The coaches knew that Gimson was going to place at state (he did). This coach got crap from the fans for sure, and the coaches I talked to throughout the day said they don't know that they would be able to do that. I know that this sort of argues for allowing injury defaults, but a majority of the coaches said they don't know if they could do that. Keeping that in the back of my mind, It's easy for coaches to say they'd do the right thing, but when it all comes down to it, a lot of then would have a hard time not taking their kid to semi-state, state, the finals etc. I think by giving the option to pick and choose which match they wrestle in gives them the idea that they get to go farther. Either way the rules are the rules, and I'm just for good hard wrestling. There can always be talk about ways to improve the sport. I'm here to learn.