You don't have to be poor. If conditions permit, you should tell the truth to your child. Even if the budget is overspent, let the children know the reason!
As the saying goes, extremes meet, and many things can neither be indulged nor strictly controlled, so grasp the degree.
No matter how much you talk about these things, they are not as good as your parents' words and deeds. When you don't want or don't want your child to do something, review yourself!
Family rules and family education is not to say, but to do, parents should set rules, but also to do and abide by!