I don't even know if that's true now. Parents like the idea of handing over a physical item, and everyone likes opening a present, but loads of kids spend their pocket money on V-bucks. I reckon loads of kids are entirely at ease with digital purchases because it's what they've known their whole lives and on top of that, would rather just have all their games ready to load up without messing around with ejecting and inserting discs. You'll doubtlessly find some people who don't agree, but I tend to think that physical media is generally speaking an old person's preference, outside of things like Vinyl records, where the aesthetic and analogue process is part of the charm.