The problem with this is the same one that lead to the ADA mandating ramps: The handicapped are too small a population with too little money for businesses to f

The problem with this is the same one that lead to the ADA mandating ramps: The handicapped are too small a population with too little money for businesses to financially justify adding ramps simply to get their business, but without the ramps the handicapped can't shop at all. It's a Nash equilibrium in that the first business to unilaterally add a ramp loses money and becomes less competitive than their rampless competition, so the steady-state strategy (the one chosen by players who all know every other player's strategy) is to not build any ramps at all. Nobody can move unilaterally without losing, so nobody moves at all. This is why the government does these things: To break Nash equilibria that have harmful externalities. In this case, the harmful externality is handicapped people having shittier lives. Much the same logic applies to what the EPA does.