I agree. But having enough space is what lets you adapt in the first place. You can't, for example, partition a space into two rooms when there isn't enough space to do that.

This is an excerpt from the last national housing space standard published in the UK in 1961 (the national space standards were scrapped in the 1980s by the Conservative government). This report was written over 60 years ago, and yet what is says is still relevant today (at least in the UK)

"…a good house or flat can never be be made out of premises which are too small...additional space is also an important long-term investment, for if a house or flat is large enough it can usually be brought up-to-date as it gets older; but if there is not enough space the improvements can be impossible, or at least unduly expensive. Homes are being built at the present time which not only are too small to provide adequately for family life but also are too small to hold the possessions in which so much of the new affluence is expressed...Such places cannot be expected to meet the needs of their occupiers today, still less hold their value in the long term."

(From a government report called Homes for Today and Tomorrow, published in the UK in 1961)