NotBadConsidering maybe we should be considering infant feeding as a whole though.
I agree that the BF/FF thing makes the whole situation of introducing solids ( sorry I understand that weaning means different things to different people) complex, but maybe we should have a more integrated approach.
After all from the baby's pint of view it's all nutrition, whether Formula, Breastmilk or solids.
It may make things easier from an adult perspective to try to put things into neat little boxes, but is that best serving the infant.
But I also totally understand the need to make messages as simple as possible to avoid misinformation.
We must also realise the historical aspect on infant feeding.
Only a few decades ago babies would have crumbled sweet rusk of baby rice in a bottle, sometimes from only a few weeks old. When I was a baby babies were spoon fed cereals at 12 weeks.
Still that legacy persists, often from older generations, in an effort to "settle " a baby or push on to some milestone as is it was a mark of achievement.
With a 6 month advisory many parents will introduce solids at 5 months- which is probably OK for most babies , some will introduce at 4 months - which will be fine for some, but not for all.
If we advise from 4 months that downward push will continue to exist and we will have babies being spoon fed at 3 months or even 2. Which is not OK.