Hi avm
No, not really as I too had wondered who had filled out that census. I agree with you.
No, for me what has possibly undermined the 1851 census (Sarah with Joseph & Matilda in Brenchley) is the CSEoA: the date of birth discrepancy is just too big: Sep 1824 v Mar 1858, 3 1/2 years. Unless I suppose you argue that WRD really did not know his DoB which is why he asked for the CSEoA in the first place. In 1866 when it was issued he had just married Amy in Gillingham. Their MC says they were of "Full" age.
Hi marge,
I too read that as a ditto on the line above.