...the thing to understand is that people judge the goodness of what they have in contrast to what they had before. So most users of languages don't see themselves as impoverished because they have previously used languages without try/catch and now they have try/catch, so they've moved up. We've had our eyes opened, so it's hard to go back. But convincing someone they are missing out is hard.
Kent Pitman in Re: The origins of CL conditions system.