It is not bad as long as you own stocks, which you can exchange into material goods.

Like some of my friends can afford a decent house, but prefer renting because it gives greater flexibility (they can rent a small flat in the center of the city in a walking distance to the office and meet with friends often while they don't have children instead of investing into big house in the suburbs with empty rooms they wouldn't use).

But if you own nothing and don't save, this is bad.

The UK did a great thing last year, they increased to minimum payment to private pension (equivalent of US 401k) to 8% of salary, so even irresponsible people will have some savings at retirement age. And I think the UK should continue gradually increasing these contributions.