In most cases stopping on a taxiway and being towed is probably better.
Totally agree!
Quite frankly: telling an F/O - who has just landed a jet weighing say 180 tonnes in bad weather at night, or flown it down to 200' aal and then gone around - that s/he is somehow not competant to taxi the same aircraft slowly along the ground, is preposterous.
Again totally agree, my last airline's SOP was for the FO to taxy on his sector right up until turning onto the gate where the Captain took over.