End of para 1- as humans can. 'like' would be used by many, so I wouldn't say it's wrong, but purists would use 'as'.
Para 2 l1- Did your uncle have a child he adored or do you mean 'as if it were his child'?
l2 He had had it??
Para 3 l1-2 I would rather have
l4- I'd delete 'to be present'