A LTC need can occur at any age, due to strokes, MS, accidents, violence, etc. However, most LTC needs begin when people are in their upper 70s or 80s. A $4500 monthly benefit might cover 180-200 hours of non-professional home care currently, but its purchasing power would deteriorate over time. As the baby boomers age, the cost of LTC is likely to inflate faster than the CPI (consumer price index). Perhaps in 2045 and later, the cost will increase more slowly than the CPI. Thus, it is important to arrange for the Maximum Monthly Benefit to compound automatically each year, whether you are "on claim" or not.
Today, the most common benefit increase feature is 3% compounding. The price of LTCi is intended to stay level, so compounding adds a lot to the price. Unfortunately, there is significant risk that the cost of care will grow faster than 3%. You might address that risk by choosing a higher compound rate, by increasing the Maximum Monthly Benefit to a higher level, or by absorbing that risk yourself.
Compounding is generally required for a policy to qualify for the State Partnerships for LTC (NA in AK, DC, HI, MA, MS, and VT). The Partnerships are government incentives for the middle class to purchase LTCi. Ask your advisor about them and also about tax incentives for purchasing LTCi.