So I assume that each alter of Mike’s has their own recollection of memories and whatnot, considering Vito mentioning his uncle Vinnie, and Manitoba mentioning having a wife.

Headcanon:

Svetlana hates the stereotype that all Russians do is drink vodka and dick around. She is 100% sober all the time because her father (as she recalls) was a heavy drinker and just sort of sat around like a lump all day every day. He never even looked at her, he just sat there, staring at a static-y TV and drinking. Svetlana’s mother had to shoulder the burden and provide for the family, which made Svetlana despise her useless father. “Lips that touch the alcohol will not be touching mine!” she announces proudly when asked about the subject.