Oh dear, not normally a believer in the 'Fates' but today lunchtime I happened to be parked in a parking Bay (which are like gold dust) as my wife had alighted to go into a shop to seek out a Birthday card. I turned on the radio which happened to be tuned to Radio Four, and the programme in question was "You and Yours" and - wait for it - the topic under discussion was THE 1921 CENSUS. More to the point the invited guest was the person in charge of its digitisation from FMP (See what I mean about the 'Fates').
It was a lady but I was not in time to catch her name and the only distinctive thing I remember was she had either an American accent or Canadian. She told how she was there from the start in 2019 and recalls the very first boxes of Census Indexes which had to be scanned before tackling the actual Census boxes. The boxes were contained in 1.6 kilometre of shelving, and it had been a massive task and had taken the best part of 3 years to complete. She related some of the new things contained in the 1921 Census which included (for the first time) Divorce details, Names of Employers and of Materials used in their work. Those are the details I can recall but others were mentioned.
I do recall hearing that although online research would have to be paid for in a pay to view form (no actual costs mentioned) visitors to the National Archives at Kew would be able to view digital images for free. They will not be able to view the original paper returns just their digitised images.
I suppose hearing all this I should be chastened in my view, and to a certain extent I am, and although unlikely to be one who visits the NA it is comforting to know one can view for free. I will still be a reluctant 'pay to view' person, but I am unlikely to ditch my FMP subscription.