Why Roth IRA examples are useful
Roth IRA pages are often used for long-horizon planning because contribution timing and consistent saving habits can matter as much as return assumptions.
Examples make it easier to compare how a starting balance and recurring contributions interact over a decade or more.
A smaller existing balance in this example still leaves plenty of room for consistent contributions to shape the long-term outcome.
What this simplified example does not cover
The model does not enforce contribution eligibility, annual limits, tax-law changes, penalties, or withdrawal-order rules.
It should be treated as an educational growth scenario rather than a compliance or tax-planning tool.