I was in a conscripted army too. Technically I was preparing for WW3 but in reality we drank a lot of beer and waited to get out again. We certainly didn't think about fighting a war.
How do you know actually? A lot changed in past 4-5 years, having a soldier with a black eye is a whole lot of trouble for commanding officers and they sometimes take ridiculous measures to prevent that. Of course it's not same everywhere, but it's army after all.
Young people in Russia usually don't have a job and have a big issue getting one; even if they have a job they clearly don't have salary high enough (not talk about Moscow there) so they work a lot. As result they have limited amount of money or just live with parents for long time. Fortunatelly there is internet, computer games, series, films so in both cases these people don't have a time to watch propaganda TV.
Sadly I can't tell the same about other parts of country population because there is huge amount of older people that don't have a job (and have absolutely no way to get one because in Russia nobody need you once you're older than 40) and of course they have nothing else to do than get drunk and watch TV. It's also a lot easier brainwash people that had no life, have no money to live like in US / EU and have no future.