I know why they prefer the EF...some quoting of people's answers follows. "I like the mystery - that God is OUT THERE! "I like it that I can just pray my private prayers and don't have to pray with others." "People distract me and I fear I will receive Communion unworthily." "I don't want to touch people I don't know. Mass should be your private prayer."  Clearly there has been no catechesis that has reached people. God is not OUT THERE - someone should explain to people the Trinitarian indwelling - God is closer to us,  by choice and out of love, than we are to ourselves. Someone needs to explain that Eucharistic Liturgy is communal - we as community celebrating,  along with the priest-presider,  Word and Eucharist...private is for home...liturgy is for community.  "Human interaction" would be the Sign of Peace, which I know many EF devotees eschew. Does that help?