As the years wore on, those teenagers who had, as often happens, left the church before the reforms, returned in later life to find a church they could no longer recognise and relate to. Thus an important source of (re)-recruitment was lost. A further issue was, and remains, the use of special liturgies for children and indeed the infantilisation of the mainstream liturgy, which made the church childish-seeming and something to grow out of.
I believe that the problems with the liturgy can be understood by reference to
- the anthropological theories developed by Barthes and Levi-Strauss in the 1960s, as these referred to earlier work on semiotics by Saussure and others,
- the cross disciplinary work on lingustics and psychology and
- recent work on neuro-psychology and brain function, with an input from genetics and evolutionary theory.
There is a huge amount of recent cross-disciplinary material to be assembled and integrated into contemporary theology. To cut a long story short, it would be concluded that the old saying lex orandi, lex credendi applies. Whilst the simplified form of Novus Ordo will continue to have its place - it is perfectly satisfactory, useful indeed, for example, in small communities for weekday use, and for didactic purposes - public celebration of the liturgy, especially in large spaces or when a lot of people are present, the Extraordinary Form needs to be the norm.