That's pretty much entirely false, at least as I can see it. Employers can and do hire young, inexperienced people on contracts that say "we can fire you when we want and we don't owe you". Those aren't proper long-term labour contracts, true, but it's precisely what you want for someone who's getting a job for the very first time in their life.
Edit: for the record, I'm from Bulgaria and our unemployment rate for under 25 years-olds is 28%, according to latest Eurostat data. Back in 2008 we were at nearly German levels (11% vs 10%). Interestingly, Germany is the only country whose rate has gone down rather than up in the last few years. Their graph is almost perfectly asymmetrical with the ones for countries of Eastern Europe.
That’s because Germany implemented the necessary social reforms before the crash (around 2005), rather than after. It also still has a superior education programme with apprenticeships for standard jobs, as well as cheap university access with extra funding for poorer people.
Edit: You can even see this in the graph. German youth unemployment peaked in 2005, well before the financial crisis but after a decade of slow growth, also cf. [0].
Edit: for the record, I'm from Bulgaria and our unemployment rate for under 25 years-olds is 28%, according to latest Eurostat data. Back in 2008 we were at nearly German levels (11% vs 10%). Interestingly, Germany is the only country whose rate has gone down rather than up in the last few years. Their graph is almost perfectly asymmetrical with the ones for countries of Eastern Europe.