Most Catholic churches here have a number of services beteen saturday night and sunday evening. As a catholic usually worshiping at a Methodist church with family, I miss the flexibility of times of service. We have one service on sunday, miss it and you're out of luck.
However, given that most churches here have at least 5 masses on the weekend, can't they attempt to offer a worship style that appeals to all? The children's mass is geared to families with youngsters, the homily is different and folks are more tolerant of restless kids. The "high" mass uses all sung responses and more classical music and is slightly longer. Saturday evening is more casual. Some churches offer a mass in a non-english language; Spanish around here. And one near-by does a Latin service.
As long as the standards are being adhered to, I don't see the harm in offering different worship and service styles to reflect the diversity of the backgrounds of the congregation. Mexican catholics have a different style from Indian catholics and Irish catholics and even catholic converts from the protestant denominations. Older folks have diffenent expectations from younger folks. Even exactly following the order and rituals I think there is room for some differences.
Catholic, as in religion, is capitalized...Catholic.