It’s pretty much given that the pension system of many countries will collapse, so young people are paying into a system which they either won’t be able to use or will be heavily disadvantaged. IMHO the pension system should be (at least partially) privatized, but it’s of course too late, damage is done.
Income is taxed too heavily and wealth too little. These days it’s pretty much impossible to buy a house for many families even though the population doesn’t grow and new houses are being built. You can’t amass wealth with work, only woth inheritance.
Some worker protection laws should be weakened, specifically laying off people is often pretty much impossible which makes people allocation inefficient and companies conservative.