I think there is a difference in always giving an older child what they want, i.e. a new toy to giving a baby or young toddler what they need. want and need are two different things and this is such a tender age with seperation anxiety and learning about indepedence and so on.
my LO is a high needs baby and always had been and I just do what feels right, and leaving her in a room if she is desperately clambering to get after me and putting her hands up to be picked up and looking scared just doesnt feel right so I dont do it.
So the question is do they want or do they need to be carried all the time? Why is it okay for them to not be carried when mummy is not around? Why do some children throw tantrum with one parent but not another if the tantrum is a result of physical or emotional needs instead a response to the cues given by their parents - i.e. if I act a certain way, I get a certain reaction from this person?
Biologically, crying is a baby's way to get us to do what it wants or needs, it's natural that it makes a parent feels guilty to ignore it. Most women has to juggle different guilts, if she doesn't look after herself or the house, she feels guilty, if she leaves her baby to cry, she feels guilty. But something has to give. At some point, all parents has to say no to their children, but it's up to each parent to decide when as their patience and time/financial ability allows. I don't think leaving them to do chores at one year will harm them nor do I think indulging them until they are 6-7 will hurt them for life. Children are very adaptable, they learn and change very quickly.