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human
Why is magnetic inequivalence not a problem in 13C NMR?

In 1H NMR I've been told coupling to magnetically inequivalent carbons isnt considered due to carbons low RA, but why is it not an issue to consider in 13C spectra?
gpt
The chance that a particular carbon is 13C in a molecule is about 1%, but the chance there are two neighbouring 13C's is 0.01%, i.e. to small to be observed in 13C. The 2D INADEQUATE experiment makes use of this 0.01% (one needs to use extremely concentrated sample too) to map out which 13C's belong to neighbouring carbons.