One of the things that irritates me about the "fuck behavioral change" crowd is that they treat all drivers as unthinking animals, constrained only by their fear of damage to their vehicle. But I obey the limit (though I rarely drive). So do others, to varying degrees. This bottlenecks speeders!

Should behavioral change be the only avenue of change? Heck no—individual responsibility is often scapegoated to excuse inaction. But should we advocate for lower limits and, as drivers, obey them? Yes!