No your child does not help you sadly. It doesn't grow any older than a toddler.
your wife will not help you at all
you can buy it anytime in Yodel Farm or Saibara's
Go downward out of your farm, then go left, then up.
You can get it from Zack, the one who goes to your farm every 5:00pm in the evening.
You can go up into the mountains behind your farm. But that's as far away as you can get. There is no way to leave.
Not A child,but YOUR child can help. After they are like a year old,they can help.
she is the shy girl in the chicken farm in the town.......... she is the girl from the chicken coop who has pink hair not the older woman that never leaves her house that's her mom ( is impossible for me to marry)
She works on the farm, by the mineral town path, she can usually be found in her house, shop or vegetable fields
Harvest Moon is a game made by a company named NATSUME. Harvest moon is more about on farming, having a goodlife in a farm, planting, making friends and even marry someone you love.
Your Child will never grow past the "teenager stage" Which means your child will never get married or help with the farm work.
I am not sire about the first one, but you can only have one child. The gender of you child is random.
harvest moon is a game where u create a farm with alot of animal's, every year on harvest moon there is event's like, harvest festival, cooking festival, sheep festival, cow festival, chicken festival, and many other's, the point of the game is to get the best farm in mineral town, and 2 unlock all of the spirite's. i haven't done it yet, but I'm working on it