0-100°F also has more individual degrees than -18-38°C, and when a couple degrees can make a big difference for indoor comfort (or the heating bill), I appreciate more granularity.
Ah yes, because I've always found 16.5°C such a difficult concept. Decimal places are hard.
I concede the "human" scale could be handy to some, but I mean - the civilised world uses metres, not feet - why should it be any different with temperature?