4. Know-it-all

Moms are notorious for bragging about their kids - and why not? You’ve raised some awesome human beings capable of incredible things. However, it’s a different story when it’s your teen who becomes the braggart, and allows their self-praise to blind them. Know-it-all kids are often a nuisance to their friends and family, and arrogance is a bad trait you need to be on the look out for so that you can nip it in the bud.

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