You really need to socialize any puppy you get, and yes newfs love children, but, they do not come toyou already trained, there is a lot of work that goes into owning a newf, and, if you are that isolated, you might want to call around to find out if anyone in your locale has a newf,go visit it in the house, esp on a rainy day, they bring in dirt, leaves, grass clippings into your house, they drool, they drink water and leave a trail of water across the floor, you do not go slipperless or shoeless in a houe with a newf! LOL
they are very attentive with the right trainer, and any time with the toddlr MUST be supervised as it should be with ANY Dog, training has to be done du to the Thinking nature of the newfoundland dog, they are problem solvrs and do get into trouble if they are not walked and trained and properly socialized, right now i would say no, until you get more experience and exposure tothe breed itself.
read the breed standard at the newfoundland club of america website, read about the breed, there, instead of the descriptions on the internet.
the BREED STANDARD is where EVERYONE should start.
not to discourage you,but also to encourage you to do more homework before you jump.
a puppy is for the lifetime committment.
As far as grooming? a high velocity DRYer is a must!!
every newf owner should have one, and if they dont, a trip to agroomer who does use one on them, and every 6 to 8 weeks.