Why DID that woman just go cold turkey like that? I would have gradually cut down, by distraction during the day, even leaving them with dad at the times they liked to feed, cut down to morning and night, etc. it seemed v brutal, and, therefore, a lot more traumatic and off-putting to anyone thinking about extending til 2. I was till feeding DS unti just before he was 2, but cut down gradually, and then made a strategy for cutting out mornings (DP whisking him downstairs before he had fully woken and distracting with treats and excitement) and then cut out nights - by leaving DP to put him to bed while I went out with freinds.
No stress or upset at all!