Manners are so important and these days, I don’t see enough kids with good ones. Kids are like little sponges and will emulate what they see at home. So, start teaching them young by showing them a good example!
Teach them to say “Please” and “Thank You”. Teach them that before leaving the table, you ask if you can be excused. Don’t tolerate interruptions, instead teach them to say “Excuse me” and wait to be acknowledged before saying what they wanted to say. And don’t just tell them to do these things, show them that it’s the right thing to do by setting a good example and saying them yourself.
Proper manners will help them for years to come, and it’ll make your home a more peaceful, fun place to live.