Until they start talking. Take away their favorite toy or candy, their love for you becomes very conditional! "Like taking candy from a baby" and "slept like a baby" are two of the dumbest cliches we use since they mean the opposite of what real babies are like.

"Like taking candy from a baby." Means it's easy to take since they don't fight back. Slept like a baby, I do agree it's used incorrectly, but even if a baby wakes up and cries, when they do sleep they have not a care in the world. (Plus newborns sleep most of the day whenever they want..No job, no worries, no stress. Eat, sleep and poop.)

Have you ever dealt with a real baby? They put up a fierce fight if you try to take candy from them. Also, some babies sleep pretty poorly and run their parents ragged. Also, "eats like a bird/horse" are used backwards to their real world amounts relative to body weight.

I have three kids. A baby is different than a toddler; which I assume you meant. A baby I can easily take out of their hands. They may cry for a second but are pleased by a replacement as if it were nothing...

Like hell it wouldn't my matter if it’s not biologically his baby. If my wife had a baby that wasn’t my mine it would very quickly become “my ex-wife’s baby.”

...Are you dense? People can end up in a relationship after a woman is already pregnant. The woman could have been dumped, found out she was pregnant but met another man in the meantime. Also, rape happens and people don't always choose to abort or put up for adoption. That child that is born does not care whether the father is blood related or not. All that matters is if you raise it as your child. Not everything is based around cheaters, you don't have to be so cynical.