Does anyone else have child who has an imaginary friend...who is a grown up????

[Miggsie]

DD (aged 4) has an imaginary friend whom she talks about a lot, but I have now discovered this friend is a grown up, with a house and dogs and chickens and who drives around having fun...
I thought imaginary friends were generally children?

DD seems to use her friend to make sense of life events, like when our pet died she says "my friend's pet also died and she buried him as he was dead".

Anyone else's child have a grown up imaginary friend?

Oh, and of course, this friend "lets me stay up till whenever I want". well, they would, wouldn't they?!

I had an imaginary friend and I can remember talking about him when I was little. His name was Derek and he rode a motorbike. I would get maps out for the family and show them where "Derek" had been. Then one day he fell off his bike, broke his leg and I never spoke about him again. Bizarre, I know but I actually remember that last bit. I can see myself in the dining room explaining the accident to my parents. Spooky I guess.
Even more spooky, I once went to a clairvoyant who asked if I knew anyone who rode a motorbike, it had great significance, someone very close. Call me mad but I think Derek is my Guardian Angel