It isn't common in the UK, where online supermarket shopping has existed since about 1997. (And not as some obscure thing, the biggest supermarket launched it then.)
Over 20 years later, this still happens to me every time I ever buy root ginger.
I always want a lump / knob / finger / whatever of ginger, and without fail forget that the unit of measure is a kilogram, which would take me months to get through.