How do you build "sleep associations", ffs?
DS (7 weeks) goes to sleep in someone's arms, veerrry occasionally his pram or the carseat. End of. I've tried doing the same patting/singing to him in his basket: no dice. Nor does he want to co-sleep.
So, if you try for an hour and they just WON'T go down and are crying because tired/frustrated, do you just keep trying? Or go back to tried-and-trusted methods??? In which case, how're they ever going to learn anything new?