"If it saves but one life" is an illogical presumption upon which to base an argument.
For example... this "logic" was advanced in support of some gun-related legislation. Fortunately, substantial research had been just completed, showing that ' as the study title put it, "more guns = less crime." Lack of access might prevent some accidents, while easy access prevents many, many deliberate killings.
I suspect that the same is true in this case as well.
Even making additions to building codes has been shown to substantially increase the cost of building a house- with the unexpected result of more folks, living longer in worse conditions, as the price is beyond their reach.
In our daily work, we see this all the time. With a requirement to bring remodels up to the current code, costs go up,up,up.
Also, attempts to address one risk often result in the creation of another risk. To use an extreme example, most places would require an Amish homeowner to have electrical service as a condition of getting the C of O- introducing all the dangers of electricity where they are neither needed or wanted!
There is a role for individual and parental responsibility. Babies in the house? Plastic outlet fillers are cheap, and already available FREE from many sources.
I'm sure someone will say "It's done this way in (name the foreign country)." Sure, it is... and their entire electrical set-up is completely different. If nothing else, their plugs are HUGE, more akin to our range plugs, and it is a lot easier to insert a variety of common objects into them. As for our receptacles- I have trouble getting my probe tips in the skinny slots!
What will be next? Locking shuters on toasters?