The converse is that in Europe the caller pays (or used to pay?) more based on whether they're calling a cell phone or a landline. Why should I care what kind of phone the person on the other end has? That seems like their burden, not mine.
This whole line of argument is about ten years stale, anyway.
The upside of cellphone calls being more expensive in the EU (or at least in my country) is that this makes mobile telemarketing calls much less convenient, to the point I can't remember the last telemarketing call I received, if I ever received one on the cellphone. OTOH, my land phone stays disconnected 24/7 because of telemarketers.
The only mobile telemarketing calls I receive are actually from my phone company. Whenever someone calls me and upon, answering, they say the magic words "Mobilcom-Debitel" (the company's name), I immediately hang up without saying anything else and block the number. They change numbers about once a month, though.
This whole line of argument is about ten years stale, anyway.