Here's another interesting piece of data regarding debt: Dutch households are the second most indebted in the European Union https://data.oecd.org/hha/household-debt.htm

And if you think that private debt is different than public debt: high private debt inevitably becomes public debt through 2 channels.

The first is if households accumulate too much debt and default, banks collapse and the state bails out the banks, leading to more public debt. That's what happened in 2008.

The second: too heavily indebted households seek to deleverage by consuming less, triggering an economic slowdown and then countercyclical measures by the state --> more public debt. https://www.imf.org/~/media/Files/Publications/WP/2018/wp18141.ashx