I am the main earner and DH and I are very happy with our arrangement and have been for the past 12 years. 2 years ago DSS2 came to live with us, slightly unexpectedly. Obviously I fund a lot of of the cost of his upkeep (and before that, basically subsidised DH's payments to his ex following his drop in income a few years ago).
Since DSS2 came to live with us we have eased the change in our home set up a bit by DH being able to claim CB. Bit peed off (probably need to rethink it all!) that because I (not his mum or dad) earn more than the new limit that will come into effect, DH will no longer be able to claim CB from next year ....
am probably being a bit unreasonable but still.....