Quantity of guns owned isn't an indicator of misuse.
When I was a shooter I had at one time 7 of them.
I competed in club shoots in two different pistol classes, vintage military rifle (bolt action rifles), Distance shooting, .22 indoor range and clay shooting.
I had a Webley revolver, a Browning HiPower 9mm, A Lee Enfield MkIV in .303 forvintage service rifle competitions, a Sauer 505 in 6.5mm Creedmoor for distance shooting, an Anschutz .22 target rifle and Baretta over and under shotgun for clays.
I have also owned a Lee Enfield 7.62 Parker Hale conversion and a Ruger .22 Semi-auto.
Most of the gun owners I knew and know had at least several guns.