Group 1 - Retirement planning involves many unknowns and hidden expenses that are often overlooked [1] - Healthcare costs are significant, with a 65-year-old retiring in 2025 expected to spend an average of $172,500 on medical expenses throughout retirement, not including long-term care or dental services [4][5] - Housing costs extend beyond mortgage or rent, including homeowner insurance, property taxes, utilities, repairs, and potential modifications for accessibility [6][7] Group 2 - Long-term care is a critical expense, with 56% of Americans turning 65 expected to need it at some point in retirement [10] - The average annual cost for a home health aide is $77,792, while the median annual cost for a semi-private room in a nursing home is $111,325 [11]