Despite my diagnoses of 'Textbook Asperger's", I did in fact engage in imaginative play as a child. In fact, I spent many many hours constructing elaborate fantasy words. I played extensively with my younger brother, with our dinosaur figurines, Star Trek/Star Wars/Space Precinct figurines, Babaloo Birds, soft toys... Yeah, I had a lot of imaginative play. I would also take on 'personas', in which I'd slip into a role and 'become' that character, usually when playing with my brother.
My brother was really the only person I engaged with in play, though. In social groups, I was always the outsider, playing by myself.
Admittedly, I loved construction-based play too. Legos, construction sets, cardboard, scissors and sellotape... Making up the landscapes and props was maybe the most fun part of all.
But yeah, my childhood 'dramatic' play wasn't classically autistic. I had other 'play' that was, but I was a very imaginative and play-creative kid.
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~I wanna fly high, so I can reach the highest of all the heavens
Somebody will be waiting for me, so I've got to fly higher~