On the one hand, good. Valve needs to be held responsible for this.
On the other hand, steam has the best parental controls of any platform Iโve ever seen. You can just not let your kid play those games. Parents should take responsibility for their kids. Games already have ratings and warnings and such.
On the third hand, I forsee this as being yet another means of forcing ID checks and face scanning into the platform. I donโt trust our government not to fuck this up in the worst way possible right now.