[Spooky23]

It’s become more widespread guidance in the last decade. There are a few studies iirc comparing cousins living in the UK as opposed to Israel. The Israeli kids get a peanut based cracker as a common snack and have much lower incidence of peanut allergies.

I think in the US the issue is that there isn’t a ton of published material on it. My info may be out of date as my kids are well past this stage.

[fullstop]

One thing to be careful about here, and I don't have any data or skin in the game here, is survivorship bias. It would be worth noting the difference in deaths from anaphylactic shock in very early childhood by country.

I guess what I'm getting at is that you might not be counted as having a peanut allergy if you're dead.