Well, sort of. Babies get used to whatever they are doing, so at first, if they are always carried, they will get used to being carried, and doing something else is disturbing.
Spoiling infers manipulation, and they don't get that right away. By 4-6 mo, they do, and will start to "work the system". So do what you want until about 4-6 mo, then settle into patterns you want to continue for awhile.