But some younger Catholics say they can no longer live their lives in keeping with doctrine.
Its influence on young Catholics was also considered problematic.
Thousands of young Catholics lined the streets as he left the city's cathedral in his popemobile.
It relied on these young Catholics sharing their stories.
That ethos affects the attitude of young Catholics toward their church, he said.
Still, they are aware that young Catholics have felt the difference on this first trip.
As the sixteenth century closed a young Catholic could exist in England, but that was about all.
Then over the decades, the authority of the church weakened and young Catholics assimilated.
I wish to make an appeal to young Catholics to consider the missionary vocation.
But he appealed to young Catholics to refrain from violence.