Well, it varies. In many comics, the fate of children is handled carefully to avoid overly disturbing content. But in some darker or more intense storylines, it could happen.
Well, it's hard to give a definite answer. Different comics handle the fate of saviors differently. It could be that they die heroically, or they might survive to continue their adventures. It all comes down to the specific comic and its narrative.
Yue Jin Chao had died because Bian Luohuan had exchanged his life for his. Three years ago, Bian Luohuan went to the Dragon Pool to exchange his existence for Yue Jinchao. Because Bian Luohuan didn't have much life left, Yue Jinchao's lifespan was also very short. This led to the tragic ending of the Legend of Sword and Fairy 6. An existence that surpassed the present appeared out of thin air, and it came at the cost of one's lifespan. Therefore, if Yue Qi were to deal with Kun Peng in the future, Yue Jin Chao would replace Bian Luohuan and resonate with Yue Qi, releasing his true power. However, Yue Jin Chao would have to pay a huge price or even die tragically. Therefore, Yue Jin Chao's death was a sad ending.
Sure, Rick and Carl do die in the comics. It was a heartbreaking moment for fans. The way their deaths were depicted contributed to the overall tone and direction of the comic series.
Penguins in comics can die in different ways. It could be because of diseases, or perhaps they get involved in dangerous adventures and don't make it out alive.