I'd suggest that younger people are demonstrating an active interest in high-fidelity audio in several ways (some assist here from AI):
Embracing Lossless Streaming and Hi-Res Audio: With services like Spotify HiFi (forthcoming) and Apple Music Lossless becoming more accessible, younger listeners are increasingly opting for higher-quality audio formats over compressed files.
Rediscovering Physical Media (Vinyl and CDs): There's a notable resurgence in physical music formats, particularly vinyl records and, to a lesser extent, CDs. It's reasonable to think that the tactile experience, the album artwork, and the sense of ownership – along with turntable purchases shows interest in audiophilia.
Investing in Quality Headphones and IEMs (In-Ear Monitors): Many younger listeners are moving beyond basic earbuds and investing in higher-quality headphones and IEMs.
Engaging with Audio Communities Online: Social media platforms, forums (like Reddit's r/audiophile), and YouTube channels dedicated to audio gear, reviews, and listening experiences are thriving with younger viewers/listeners.
Exploring Vintage Audio Gear: There's a growing trend among younger enthusiasts to seek out and even restore vintage audio equipment like old receivers, turntables, and speakers. Some of this evinces appreciation for classic design and build quality.