The phrase "complexity of having" is correct and usable in written English.
You could use it to refer to the difficulty of having a certain responsibility or situation. For example, "The complexity of having a full-time job while attending college proves difficult for many students."
One learning was that the complexity of having a mixed site of responsive and non-responsive pages should not be underestimated.
A deep pleasure this -- the challenging complexity of having to sort out Gerrard Street from New Compton from Romilly from Charing Cross, the happy, sensuous hubbub of all those names.
His response at the time was rather roundabout; he acknowledged the complexity of having sex offenders living in half-way houses and also said it would be a problem if he said they should not be living there.
Tough cost limits mean management support will be sparse, while there is the added complexity of having to depend on a commissioning support unit for much analysis and guidance, so considerable time will have to be invested in that critical relationship.
But the enormity and complexity of having two global companies of a kind we have never seen before influencing so many areas of our lives is such, says Naughton, that "we don't even have the mental apparatus to even know what the problems are".
For design purpose, this is useful because it will avoid the complexity of having to deal with combined mass and heat transfer.
In this respect, red-complex can be understood as a mental complexities of having horror against socialism and communism and, simultaneously, being humiliated by them.
As the complexities of having a former president in the second spot became evident, however, Reagan turned to Bush.
Lipman, a dog parent himself, knows about the complexities of having a dog and not knowing if someone else in the house has already fed it.
That we'd eventually be grown-up enough to face the complexities of having children, taking care of aging parents, going through divorce and battling illness?
Miles, a rapper, and his boyfriend, Milan, allow the cameras into their lives this season, exposing the complexities of having a secret gay relationship within the world of Hip Hop.
