My DP was quite rubbish for the first few months - it didn't occur to him that I might like a rest at home for a few hours while he and DS went to PIL's. But he's always done nappies if he's about and with a bit of gentle -nagging- encouragement, has got lots better at being hands on.
So far this weekend he has got up to settle DS on Friday night, taken him to PIL all morning yesterday while I cleaned, he has washed up bottles twice, played with DS loads, given him milk and meals, done breakfast and amused DS for a few hours so I could have a lie in this morning.
He works long hours in the City and is out from 6.30am to at least 8pm every day, so he's not v confident about bath and bedtimes or settling DS for naps, but he needed to be asked to take more on at weekends, as he would happily sit with the paper and a cuppa / lie in until 1pm as he did pre-DS.
I got really frustrated that my 'job' never ended but his did, so I totalled up what it would cost him to employ a day and night nanny, housekeeper, cleaner, cook, PA and laundress if I wasn't there to do it all, esp at the weekends. After that, he realised he should share the childcare more and shoulder some of the load - he even washes bottles up at night sometimes now!