what saggar said.
Morloth, you see, your philosophy of 'I don't cater to fussy eaters, you eat what we have or you don't eat' for ds1 would have meant......he didn't eat. And as I have explained countless times, the growing hunger wouldn't mean he was more likely to eat, but that he would start vomiting.
Tbh I think this is one of those areas where if you've never ever had a truly fussy eater (by which I mean someone like ds1 or saggar's dd, where it really is a physical thing), then you do have the idea that your methods 'work'. I remember my best friend telling me what I should 'do' with ds1 - ie get him to always try a little bit. I did explain to her that for months we did exactly that, and it resulted in him trying a tiny piece, being sick, and then refusing the rest of the meal (which he liked), because he felt so sick. And this is not healthy, or good, and results in a fear of food.
If dd and ds1 had been born the other way round, I probably would have had an equally large pair of judgey pants, because dd is a dream eater. She adores most fruit and veg, enjoys exotic and unusual tastes and really relishes trying things. The only differences in her introduction to food from ds1 were that i) ds1 really struggled to b/feed, because he wasn't really interested, so we struggled along with supplementary formula (which is really hard work, to keep the b/feding going alongside, but we did till he was 13mths). Then because ds1 is older, the guidelines were to introduce solids at 4mths (and definitely not after), dd was 6 mths, and was exclusively b/fed. I do wonder if the difference in weaning age was significant, in terms of physical development and readiness for food.
But yes, if dd had been my eldest, I would no doubt have been convinced of the merits of which foods to introduce first, and how to produce a non-fussy eater. Ds1 was quite a humbling experience, because if your child cannot physically swallow the food, you cannot make them eat, and if their weight is plummeting off the chart, and they still won't eat, how long do you sit it out? A bit of empathy and understanding from those posters who haven't had a child like this goes a long way - not just saying 'oh fussy eaters are a PITA, I don't tolerate them, I don't have fussy eaters because I don't pander to them'.