So I need new tires for my bike, mostly due to age but also seeing them getting a bit squared from the highways

I asked 3 tire stores about the expected age of the new tires and the answers I got were: max 2 years, max 3 years and max 5 years, which to me sounds nuts. Unlikely as it may be, it seems like I could buy new tires from that last shop and end up with tires older than the ones I have

Back home I was used to buying tires around max 6 months old. I remember buying a 7 month old pair for my car and the store owner was all apologetic about how these don't sell much etc.
Are those age margins the norm here in Norway, or should I keep looking? Got any tire shops to recommend for new Pirellis?