Many baby boomers have done well for themselves financially. An Allianz global wealth report found that boomers — born from 1946 to 1964 — have become the wealthiest generation in history.

But across housing, investing, retirement planning and careers, millennials are rewriting the playbook boomers used. Not because the old rules were "wrong," but because the math, the market and the workplace have all changed.

Here are four money habits millennials are moving away from and the factors driving those shifts.

1. Millennials are choosing to rent over buying

For boomers, owning a home was the default wealth plan and a cornerstone of the American dream. Today, higher prices and elevated mortgage rates make the buy-vs-rent decision less clear — especially for millennials and younger generati

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