I would also like to see a deeper dive scrutinizing which situations call for it and which don’t. For instance, a game like Doke Doke Literature Club absolutely needs to warn people because it is a rug pull at its heart that switches to a truly twisted, horrific display of trauma/meta story telling, so people would have walked into a potentially traumatizing trap without a trigger warning. A game like that it would be irresponsible to not have one.
To put it another way: trigger warnings are probably more effective in situations where a person can’t reasonably assume there are going to be potentially traumatizing moments/themes/etc. If you are going to see a WWII movie, you probably don’t need a trigger warning about violence/explosions/guns/etc. Though this is just my assumption and I would be very curious to see a breakdown of different situations. Suffice to say I imagine different situations call for it more than others, so making a blanket statement saying they are ineffective (other commenter) is also wrong on that front.
Really interesting questions and considerations here. My kids are not that old, but I definitely think about how to manage potentially harmful content with them. It doesn’t help that the US has incredibly clear rules about how sex is portrayed on screen, but not blood/violence/gore/sexual violence in particular and the horrors that come with all of that. You go from decade to decade and PG-13/PG just radically shift all over the place - old Bond films are a classic example of this.
In the absence of somewhat legible MPAA ratings I just feel like more specific content warnings are a necessity.