The forever home may provide the location that they want - being located near shopping and recreation or transportation areas such as the airport, interchanges, or public transit stations.
It might take care of their needs in terms of space, layout, or just allowing them to do all of the things in life that they want in a home.
Of course, it could be the investment, the neighborhood, or the architectural exterior design of the home - or all of these.
Some people have yet to find and locate their permanent or forever home - regardless of their current age or how many addresses they have had over the years.
In their search, people still look for and purchase new construction. They have various reasons for wanting something new. Among these are the fact that it is new and never before occupied, that it comes with many warranties - from the builder as well as various product and systems manufacturers - that they get to select their features and colors, that it may have a better chance of appreciation, and that it is located in a desirable neighborhood with recreational amenities and other natural features.
Others - in fact most people - have such an accumulation of stuff that it makes the prospects of moving seem quite tall. Some cannot part with what they have and don't see moving as the answer to their space issues. Others know that it would take an inordinate amount of time to sort through and cull what they have. Better just to remain put.
So, whether the initial objective was to find a long-term home, or it just happened, aging-in-place is real. Those of us who provide services to people who want to remain in their homes - such as safety makeovers, accessibility renovations, room additions, new products and finishes, technology, or modernization - there is a huge market needing our help.