Writing is hard. Querying is hard--soul sucking at times. But then again, so is life.
I've been very open about the writing and querying process with my children. They see me write and send out queries, and hear about requests and rejections. I don't make it a point of telling them, but if they ask or are around when I receive an email, I tell them. They also hear me talk about it with my husband and ask questions, which I answer.
By seeing me work hard and not give up, I hope it will give them the courage to chase their dreams. Children often think their parents have everything figured out, or by the time children come along, parents are usually settled into their careers. Not all children see their parents strive to build a career.
When they see me get rejected and keep going, I hope they can carry that into their own lives by understanding it's not the end of the world. You can't win at everything. Just because you're turned down by one person that doesn't mean that someone isn't looking for what you have to offer.
I try to teach my children that if you want something, you need to work for it, don't expect things to be given to you. Hopefully my writing journey will help them understand that.