Or get her to write a little note saying sorry I forgot to say thank you for the lift, I was a bit shy.
Are people mental? 🤦🏻♀️
It's really horrible the amount of replies saying 'she was rude', flatly, like that's it, no question.
As some PPs have said, the little girl is 8. I'm sure she says thanks lots. And ideally she would have this time too. But she didn't, it's not a big deal & this type of reaction is nuts.
As parents we keep reminding & reminding our kids to be polite, mannerly & say thank you etc. It's ongoing, setting examples. It's nothing awful if they don't realise every time or forget - they are children, they'll get there & adults should be nicer.
OP don't send a text, casually say to your DD, oh yes, it's mannerly to say thanks, do that next time, but don't worry about what friend said, that's probably got a bit mixed up along the line.