This is the kind of small thing that is subtly annoying in games until I can come up with head canon to explain it. Like how in Fallout 4 mini guns are used in banks instead of alarms. Seems way too dangerous for the public until I realized that you can walk into any bathroom in that universe and grab medications out of the first aid kit that can grow back limbs. In a world that has developed medicine far beyond their other TECH their tolerance for what would be horrifying OSHA violations in our world would be immensely greater.
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So for this I like to think they are left over from our time when the emojis became proprietary NFT. So NOW (2077) they are actually like a symbol of well to do like with gold necklace today. Not everyone actually can use all of them, sure some are still public domain but a lot of the famous ones got caught up in the NFT "wars" in earlier history.