Here are bond yields of the major advanced economies. They are flat as a rock. Meaning, In a normal economic environment, you should be compensated for the duration risk you assume (buying longer-duration bonds) with more yield. But this is by no means a normal economic environment.
So, real yields = nominal yields - inflation. In all of these countries except Italy, investors are losing money.
Today, even if an investor assumes duration risk, he will hardly get about 50 to 100 bps extra which isn’t much at all.
In this chart, Italy is an outlier. The reason why Italian yields are higher is that the county is perceived as risky give it slowing growth and extremely high levels of sovereign debt.