Teaching your kids critical thinking would be good. Don’t trust what somebody says you should do with your money just because that person is wearing a suit. Just because someone is wearing a suit doesn’t mean they know how to invest, or that they are trustworthy. Suits would cost a lot more than they do if wearing one did automatically confer investment knowledge.
Teach them not to trust “people like them” too much. Just because someone is a member of your family (this is especially true and should be obvious if you have family members who are not good with money), religion, or ethnic group, or because they went to the same college you did, does not mean they can be trusted with your money. Even if these people were all trustworthy (and they’re not), just because someone has your best interests at heart doesn’t mean they know what they are talking about when it comes to money.
Critical thinking and knowing that most things that sound too good to be true actually are too good to be true are powerful weapons in your financial arsenal.
Let the kids see you paying bills and doing taxes when they’re old enough to read, but still at the stage where they want to imitate the things they see adults doing (early elementary school would probably be a good time for this). When they’re teenagers, you’ll have a harder time holding their interest for those things.
Teach them the value of routine maintenance. This is stuff like getting the oil changed in your car regularly, going to the dentist every six months, taking your pets to the vet for checkups, that kind of thing. It’s usually cheaper to fix a problem when it’s still a small problem, or a potential problem, than it is to fix something that has failed catastrophically. Health, teeth, houses, and cars all have a tendency to fail catastrophically and expensively if not checked and maintained. Letting them see you do this kind of thing, and explaining to them why you’re doing it, would be a good way to teach them its value.
Make sure they know that health insurance is a need, not a want, if you’re in the US. Yes, this is true even if you’re young and healthy. The problem is, if you don’t have health insurance, you’re more likely to defer routine health maintenance, and, like other deferred routine maintenance, this often ends in large expenses that are hard to anticipate.
Make sure your kids can talk to you about finances. Don’t refuse to discuss things like credit card debt, even if you think those things are bad. Don’t freak out or go immediately into judgment mode if your kid comes to you and is having some financial problems. That kind of behavior is not going to make them want to talk to you when they have financial problems or questions.
Don’t try to make all your kids’ financial decisions for them. Yes, this will probably result in better decisions in the short term, but the kid is not learning the skills they need to make financial decisions when you’re doing that. You can’t learn to make financial decisions without actually making some financial decisions. They will make some mistakes, but that’s the way you learn.
Know that your kids are separate people, not just reflections of you. If they make bad financial decisions, that is not necessarily a sign that you screwed something up when you were raising them. There are lots of instances where one sibling is good with money and another is not. Accept that there’s nothing you can do to ensure that your kid will be good with money as an adult.
My investment advice, from someone who does not wear a suit: Find an index fund. If possible, get money automatically deducted from your paycheck or bank account every month to invest, so that investing happens without your having to do anything every month. You should do this as early as possible in your life. Index funds tend to have low fees associated with them, and it’s hard, even for professional investors, to beat their performance.
It’s like everything else. If you restrict your kids spending too much, they will go crazy when they finally get to decide on their own. If you don’t teach them delayed gratification at all, they never learn it. You need to strike a balance. You also need to be aware that your kid’s ideal balance may not end up being the same as yours, and respect that.