1. Generation gap: Adults who grew up listening to rock music from earlier eras may find today's rock music to be too different and jarring. This is because over time, the sound and style of rock music has evolved and changed significantly, incorporating elements from various genres and pushing boundaries in terms of instrumentation and production techniques.
2. Personal preferences: Musical taste is subjective and what one person finds pleasing, another may find unpleasant. Adults who prefer more traditional or melodic forms of rock music may find today's rock music to be too noisy, chaotic, or lacking in melody.
3. Lack of familiarity: Adults who are not regularly exposed to contemporary rock music may find it difficult to appreciate or understand the music. This is because newer rock music often incorporates experimental elements and non-traditional structures that may be unfamiliar to listeners who are more accustomed to older styles of rock.
4. Cultural differences: Adults from different cultural backgrounds may have different musical preferences and expectations. For example, rock music from different countries or regions may have distinct sounds and styles that may not appeal to adults who are accustomed to a different type of rock music.
5. Influence of media: The media often portrays rock music in a negative light, which may influence adults' perceptions of the genre. For example, rock music is sometimes associated with rebelliousness, drug use, and other negative behaviors, which may lead adults to view it as discordant or undesirable.