I find your stance on this so bizarre, because to me the obvious course of action where a huge food company is making £millions with misleading health claims is just to stop them making misleading health claims.
Literally the only people suffering here are small infants. I know you feel good to be able to say you would never fall for marketing like these other stupid parents, but is it really worth it?
It took you 20 seconds to google how much sugar a baby should eat. But that 14g doesn't include naturally occurring sugars or sugars from fruit. Which is what the pouches say they contain - so no, it isn't simple.
What is the difference between 13g of sugar in a banana and 13g in a pouch of banana puree? I doubt most people know if or what difference there is - not just for pouches but also things like 'healthy' kids' yoghurts.
There are loads of reasons that a parent might not be able to get their phone out in the middle of Tesco and read some articles on sugar limits, what counts as added sugar, what a free sugar is.
Maybe they have poor literacy skills, a learning disability, English as a second language. Maybe they are frazzled and tired and not coping.
Maybe they just trust the labels? Or maybe they are not very clever?
Why not just make the labelling clear.
Stop them putting 'no added sugar' on high sugar pouches.
Make a clear labelling system on the front of the pack that says if it is low/med/high sugar.
Put a warning on savoury pouches that they are not suitable as meal replacements
Put a % of vitamin/iron needs on the pouches.
But oh no! The outcome might be that babies get a better diet. Then how would the best parents feel smug?