Seasons change as do people.
Train a child in the way he should go, and when he is old he will not turn from it. Proverbs 22:6
Impress them (commandments) on your children. Talk about them when you sit at home and when you walk along the road, when you lie down and when you get up. Deuteronomy 6:7
As little girls we are busy learning how to be an adult, a parent. We are totally unaware of this process. It isn't until we're in our 30' or 40's we become more aware of the things that we say or do that our parents said and did. We may even pause and say, 'my Mom said that' or 'I sound like my Dad' and we're almost shocked by how much we are like them.
We grow and learn - but how many young women ever feel they are ready to be a mother? A young woman isn't done growing and changing herself…what wisdom can she impart to a child? How will she know what to do and when to do it? What if she fails? How will the child turn out? The thought of being a MOTHER sometimes imparts both excitement and terror.
Being a MOTHER is much more than giving birth to a child. It takes all of your time, all of your energy, all of your wit, all of your strength, all of the wisdom and understanding God has granted you for that child PLUS a fantastic sense of humor.
A MOTHER has to be a Chef, full of new ideas to get the little rascal to eat what's good for him or her.
Mom has to be a Defense Attorney, to plead her child's case before Dad, the Teacher, Pastor and everyone else the little one gets into trouble with. She also acts
as Prosecuting Attorney when she reports to Dad, 'Do you know what YOUR child did today?'
Sometimes 
She acts as Judge (singly
or with Dad as a panel of Judges)- She needs to
switch to enforcer when the sentence is handed down and the child is grounded
or whatever type of discipline is required; that the little tyke learns a lesson.
She's a Nurse and Comforter when the child is feeling sick or received some of the bumps and bruises that come with life such as a friend hurt the little one's feelings, perhaps feeling lonely or discouraged. Maybe bad grades in school or a flopped project. Maybe a look in the mirror about age 13 has convinced the child that it is certain they will be an ugly duckling the rest of their life.
She's the one who's heart breaks when the child no longer "needs" her (or so she thinks) because they are now strong and independent.
She has succeeded.
The child is now strong and independent, able to think for itself. Perhaps an unwise choice will be made from time to time, but Mom has taught that for every action there will be a consequence - positive or negative. We are not responsible for the choices our children make. We are responsible for what we teach them by word and example.
Your success or failure as a parent is not in how wonderful your child turned out or how poorly. Remember they have free human will. Once we've taught them the best we were able and have allowed them to move into adulthood we've succeeded as a parent.
Now we continue to lift them in prayer. After all God had entrusted them to us but he never abdocated his position to us so he is still in charge. Let God be sovereign.
In due time Mom will learn that she isn't antiquated and still is useful and needed in that child's life. Perhaps in a somewhat different way, but she is still needed. She is wise enough to realize that she needs to change gears and become the friend.
A parent is a great asset. Some children learn this lesson while they're still around; some aren't so fortunate and only learn the lesson when they have gone.
Each season has its' own beauty, excitement and sadness. But, isn't it because of sorrow and sadness that we have a greater understanding and appreciation of JOY? Illness or weakness grants us appreciation for health and strength? Loneliness helps us appreciate friendships and loved ones so much more?
If a tree doesn't drop it's leaves it won't be ready to receive the new ones!
I've known several women that didn't give birth to a child but they've been a mother just the same. They've been there through the bumps of life to encourage someone, help pick them up when they're down, point out the path when they have a clearer view -
because they've walked it before.