We shouldn't be too quick to make promises. We shouldn't get to the point where making promises become a casual thing even if we are unsure of keeping them. A lot of people today use that word "promise" today carelessly.
If we make a promise then it is expected that we keep it. Nobody should compel us into making promises. It is even worse when no one compels us and we make them in our own accord only to end up not fulfilling them.
It is good for a parent to want to impress his or her child, but at the same time it is also important to let the child know that the parent is only human so as not to make the child place so much expectation on the parent only to end up getting disappointed. Every word that goes out of our mouth should be uttered from a place of integrity because that is one thing that good values.
Parents should keep the level of promises they make to their children on a minimum or better still not make any at an except they are hundred percent sure of keeping them. Sometimes they may intentionally want to fulfill the promise but along the way something may come up and it may not work or as planned.
Ecclesiastes 5:5
Better is it that thou shouldest not vow, than that thou shouldest vow and not pay.
Instead of making a promise and not keeping it it is better we don't make the promise in the first place.