RE: Is economic growth still the solution...?

Governments tend to want growth as it increases tax revenue. Projections are generally for more spending and tax revenue despite shrinking demographic trends.

Business wants growth as it increases profit through scaling via lower unit costs. As an example, I had a friend who opened up a third restaurant and kept it open despite slow sales as it was enough volume to lower his cost of supplies.

On a personal level, I don't think much thought goes into it beyond more is better.