Kids do not come with manuals. So when someone says that you need good parenting skills what exactly do they mean?

I believe that we develop them over time and if you have more kids then you can have better parenting skills for two reasons:

1. Every child is unique and different so you need to use different parenting techniques for each of your children.

2. If you have a large family you will be parenting your kids longer, therefore you will be practicing those parenting skills longer and develop them better.

What do you think?