I think it was the late great songwriter Stephen Sondheim who said it best:
"Careful the things you say
Children will listen
Careful the things you do
Children will see and learn
Children may not obey, but children will listen
Children will look to you for which way to turn
To learn what to be
Careful before you say,,"Listen to me"
Children will listen"
As a parent, you might think that children will forget all about the promises you made to them when they were little kids. You might assume that they won't get upset or angry at you for breaking promises you made to them when they were under the age of 10, but you'd be wrong. If you lie to your children about something inconsequential to their lives long term, there's a good chance they'll forget it, but if you promise to pay to change your daughter's last name back to her late father's name after you forced her to change it to her stepfather's name, there's no way she'll forget that.