Yeah, I can't really speak for the whole of North Europe but in my neck of the woods there's very much a mentality of 'things we like' and 'things we don't like, old people must like'. Not necessarily reality, but undesirable shops/brands on their last legs tend to be designated as designed for older people when that isn't much the case, rather they simply haven't moved on with the times.
In Southern Europe, there are many brands/shops designed specifically for certain age bands that appear far narrower. Which has its plus and minuses, it's quite restrictive in a sense and ties heavily into the whole age-appropriate wardrobe concept.
The divide here seems to be much more city vs. provinces. Assumed different tastes (practical, shapeless, older, more frugal, and larger sizes) and less to offer if you're not in a metropolitan area. All the major cities here have at least 3 or 4 H&Ms plus most of their sister stores, Zara a minimum of 2 plus their sister stores too. We might have densely populated cities but they're not large (Amsterdam is pretty much a big village when compared to other capitals) so it feels like overkill, especially considering we have some of the most highly priced retail space per m2 in Europe (though big chains like H&M get massive discount incentives as they have a high attraction value which allows developers to raise the price for surrounding retail spaces). Provincial towns will be lucky to have one of those and the assortment rarely appeals.
Shame on the poly-heavy rapport. I did note above that I found it odd that the 96% cotton/4% elastane t-shirt I ordered felt more like a synthetic fabric. Also, the trousers were only 50% synthetic (not even polyester) but they were the most synthetic thing in feel I've come across in a while, it felt like full on 100% polyester. The basics like sweaters, denim, t-shirts, and work trousers seem to still be 100% natural fibres or similar, so it may just be down to what you're looking at.
It's all beginning to sound like Cos when it first started (we got the first store outside of Sweden back in the day, it must have been well over a decade ago, maybe even longer, they didn't even have an online store) everything was either on the small side or two-three sizes too big. It appears it'll have to be a store visit before I contemplate buying more clothing from them again.