So many people have been responding to this tag recently its hard to come up wuth anything original, but I did say i would respond to Phil's tag so here goes. They're not really tuaght doctrines as much as doctrinal assumptions from what we sing or say in Church.
1. "The rich man in his castle
The poor man at his gate,
God made them high or lowly
and ordered their estate."
NO - HE DIDN'T ORDER IT, WE DID! Fortunately we don't sing this any more unless the funeral director is particularly inept (which mine aren't), but sometimes I feel the sentiment is there in conversations, for example, about travellers or why no one from the estate comes to church.
2. "The little Lord Jesus no crying he makes".
OK so he was breastfed, but even those babies cry sometimes!
3. "Christian Children all must be mild obedient good as he."
This is an interesting one; it is not un-Christian to aim for a situation in which children are focussed on Christ as their moral and ethical role model. What is de-Christian about this hymn is that i'm not sure that singing those words with gustio are the best way of going about that aim.
4. "The young people are the church of tomorrow". I get so angry about this that I will just let it stand.
5.All-age worship isn't really church though is it (see no,4)