Wow. You really surprised me with that! Glad to hear it. My daughter, wife and I have worn ours for only months now, since our baptism on Holy Saturday this year.
Is it still worn by many modern (N.O.) Catholics? We're "traditional orcs".
I don't know. It's my own private devotion, and I don't talk about it to anybody else or even bring it up in conversation.
Everybody's got their own way of demonstrating faithfulness to Christ and His Mother. Or, at least they should have. This is mine.