Here's the secret. Any device manufactured with lead-free solder is more or less guaranteed to fail within 5 years. Why do you think the manufacturers were so compliant when ROHS was introduced? They don't have to design in planned obsolescence any more, it has been legislated by the EU! Manufacturers are overjoyed that every television, DVD player, hi-fi system they sell has a built-in time bomb. It is guaranteed to fail and need replacing! Woo hoo!
Just think about it. Way back when, when solder was introduced, scientists worked out what the best solder formulation was. It so happened, it was the traditional tin/lead composition. You don't think they decided to put lead in the solder because because lead is "bad" do you? They put lead in it because that is what works best!
So yes, use lead-free solder if you want to drink the Kool-Aid. But don't kid yourself that politicians have half a clue about science or engineering. If politicians make a law against it, you can guarantee the law is suspect. All the laws prohibiting really bad things were made hundreds of years ago. These days there are no bad things left to outlaw, so all they can outlaw today are things that were perfectly fine to our ancestors.