Not a single person I know much less their kids has "foreign crypto virtual cards" etc. Ofc even if they had they would be locked out of transacting with any serious business that doesn't take crypto.
The exodus is real, ask Armenians, Kazakhs, Georgians Finns or by now probably Argentinians. 30% of all people I know left. The government declared amnesty for any criminal who agrees to serve in the army for some time, and people know that all those murderers and rapists are coming back to the streets and dark alleys when Russia is kicked out of Ukraine. (Some people want to leave but stay because in their head they think everyone abroad except China hates them for actions of Putler, which is part of Russian propaganda designed to slow down brain drain.)