That’s true to some degree. I grew up in north Scarborough, lots of Italians, Poles and Portuguese and Greek working class families.
My Greek neighbour is 90, she emigrated to Canada when she was 16, raised 3 kids. She doesn’t speak English beyond a dozen words. I’ve known several friends with grandmas like that.
I find Chinese in my hood are eager to integrate. They get English down fast, keep properties up, and mix well with us visible minorities. They might house grandma or grandpa, but there are few homes with multiple families or a dozen people.