<font face="Verdana, Arial, Helvetica, sans-serif" size="2">With all due respect, I have to disagree. Being a parent myself, I strongly believe it's a parent's responsibility to control what their kids are watching, be it on TV, in printed media, or online.</font>
While I basically agree with you, we're talking about being in a foreign city where kids are flipping TV channels looking for cartoons (obviously they wouldn't know the channel in advance if there was one for cartoons) and come across porn.
As for the remote you mention I've never heard of it, but sounds like a good idea.