It seems that there are a number of arenas and stadiums that have short lives nowadays.
In the case of Washington basketball and hockey teams, at first they played at the Capital Center, in Landover, Maryland which opened in late 1973.
Then in late 1997 they moved to this current arena, which had some different corporate names, in downtown Washington.
The Capital Center was okay for about 20 years before it was decided that a new Arena was needed.
Now about 26 years after the Downtown Arena opened , it is now deemed inadequate and a new arena is planned.
As I recall they were similar timelines in Georgia where both the Braves and Falcons had new stadiums built in the mid-1990s, but then they were deemed inadequate , and each team now has a new Stadium built in recent years.
If I recall correctly the Texas Rangers had a new Stadium built in the mid-1990s but then built a brand new stadium that opened in 2019 or 2020.
It seems that anyone planning a new sports facility, should keep in mind, that it may be deemed obsolete in about 20 years the way things are going.
It's in good shape. Minor renovations are fine. However, crime is an issue now.
Atlanta seems to build new facilities every decade. I attended Braves games at the long defunct Fulton County Stadium (the Falcons played there too). The Braves have moved twice since that era. The Hawks and Flames played at The Omni. The Omni is long-gone too, followed by the Georgia Dome which had a life of how long before being replaced by the Mercedes Benz facility.