'There used to be a brilliant post on here about risk vs consequence. The risk of choking on a grape might be small but the consequences are huge and easily mitigated by cutting in half lengthways. And given the official advice has been to cut in half lengthways for years, it’s difficult to quantify what the risk is.
Aside from that, refusing to change the way you do something because you don’t like being told what to do is a bit of a dick move. Especially if that thing could potentially save your child’s life.'
Absolutely this. (This, OT, is the reason why the posts about 'I ate pate/blue cheese when pregnant and my baby was fine' really, really annoy me. Listeriosis is a small risk, but the risk rises (still to a statistically small level) with certain foods and the consequences in pregnancy can be horrendous. It's really not the same, qualitatively, as advice about dose-response type stuff such as alcohol and caffeine)
I find this behaviour (refusing good advice because you don't like being told what to do or things were done differently in your day etc) common in people who see accepting advice from people they wouldn't societally have been expected to listen to as somehow a loss of face/authority. Hence it being particularly common in older generations/PIL/men (my generally very attitudinally modern dh is not above a bit of it sometimes, although with him it's a somewhat irrational belief in old-fashioned ways that he has about some things).
If I prepare fruit for my dc I cut up the grapes, and the eldest is 14. Nothing embarrassing or over-cautious about that - choking is most common in small children but not unheard of in older ones/adults and the mechanisms and risks are similar. They have all had the 'bite into whole grapes' conversation too, esp as cutting up grapes is much less of a thing where we live than in the UK. I did manage to convince my dd's nursery to start doing it. Mentioned the risks to them, they said they would look into it and came back pretty quickly saying they had done so and would cut them up in future.