Golden rules for bonce potty buying!
1. Visit the store in person.
2. Check the 'born on' date of any helmet you're planing to take home.
3. Physically try it on, check it for comfort and fit.
You either believe bonce potties will save you, or you don't. If you do, then stick to the rules, otherwise you may as well not bother. I always chuckle when folk buy a helmet because they're a believer (fair enough, that's everyone's personal choice), but not so much of a believer that they won't put saving money money ahead of safety.
I’m sure I read that a helmet best before date is hogwash, dreamed up by the manufacturer to sell more helmets, as long as you don’t drop it they last a fair while
https://helmets.org/replace.htm
In all honesty they're probabky right, but the author has no stated qualifications or expertise on the subject. Therefore, once again, if you believe they work then the default must be the manufacturer, not an anonymous person from interwebland.
All the helmets I've bought have come in sturdy cardboard boxes. If the box is ok the helmet will be.
It's only a bit of plastic and foam. I'm sure it matters more what the user's do to it rather than how it's stored in a shop.
Again, you're probably bang on the money. But....that is only supposition, and one thing we all should have woken up to a long time ago is that intuition or perceived wisdom is often wrong when it comes to safety. If it's not been reasonably evidenced, then don't rely upon it when making a safety decision.