There aren't laws to my knowledge that forbid game developers from including the option of killing children or allowing them to die. The factors preventing its implementation are the social outcry of such a move, the perception of the company and the limitation of the game's audience.
In the past many games, including Deus Ex, Fallout 1 & 2 and Baldur's Gate, allow you to personally kill innocent minors voluntarily. If such moves were made today, with the prevalence of social media and normal media, then there would be a frenzy by many. It would prove controversial and continue to spark the everlasting condemnation of violence in video games by the concerned.
Inclusion of killable minors will undoubtedly cause immediate bans in certain countries and regions around the world. In recent gaming history violent video games without minors at all have been banned, e.g. Hotline Miami 2 banned in Australia. So if violent games towards adults have been banned, then violent games towards adults and children will have an even greater response especially given that children are depicted as innocent and pure. A banned game means reduced sales and less revenue, not what publishers and developers want. Instead big publishers and developers are continuing to appease the masses, by developing games for the general audience to maximise sales, an objective that can only be achieved without dying minors in their games to secure a lower rating, i.e. not Adults Only. The publishers and developers would not only suffer reduced sales but also suffer damages to their brand image, which many large and established companies want to avoid.
For Final Fantasy Type-0, as you know yourself, Class Zero consists of mainly 16 and 17 year olds which can die in the game. In many countries the general age of majority (adulthood) is 18, but there are some exceptions because some exhibit the age as 15 (Saudi Arabia), 16 (Myanmar), 17 (East Timor) to as high as 19 (Algeria), 20 (New Zealand), 21 (Egypt). So therefore, because of International law, due to the respect of all nations equally, games can have adults 15 or over and minors under 15. Therefore, in Final Fantasy Type-0, the characters in Class Zero are not minors in certain countries. Since in other countries they are, censorship/editing/localisations of the game will occur to fit the laws of the respective countries.
Children (minors) are not killed in games because it would be perceived by society as inhumane and terrible. I could only imagine what the video-game hating liberals would make of it. In the end, no good comes out of killing minors of video games.
yeah Final Fantasy Type 0 showed many indirect deaths of children and i believe there was a cutscene where we witnessed the death of one (depending on how old she was but pretty sure she is a minor)
Uh, what? That would be more of a video game-hating conservative thing to do. Video game-hating liberals tend to specialise more in whingeing about violence against women. But yeah, it's because that would cause an outcry. It's not really taboo in its entirety, but if your game allows the player to kill children expect a massive uproar.
Not that massive public outcries are necessarily unprofitable (cough cough Hatred cough cough), but most big studios who can generate hype using honourable methods generally try to avoid them.
Hey, im looking for an OLD Strategy game, i have been played in 2003/2004 and its With robots only, against other robots, blue robots , we have a base and looks like Transformers with swords the great robots! we got robots can fix others, but i doesnt know the name!