Tyres are obviously a very important safety item on any vehicle.
When buying NEW tyres, I expect to get NEW tyres. I always check the date code and I wont purchase unless they are new. Ive never actually had a issue when Ive pointed out to the seller that the tyre is old and not new. They usually understand and usually have a load that are actually new anyway, theyll just sell those tyres to somebody else who doesnt know about the whole date code thing.