Do we need hook keepers on fly rods?

REPLACEABLE: The package contains a total of 5 fishing pole hooks, which can meet your replacement and multiple use needs, very practical. EASY

5pcs Fishing Rod Hook Holder Rubber Circle Stainless Steel Fishing Pole Hook Keeper for Bait Tool

Fuji EZ Hook Keeper – Grumpys Tackle

Bow River Troutfitters

How I've been holding my hooks with rods that don't have a hook

Wire Hook Keeper : 4 Steps (with Pictures) - Instructables

Treble hook rod keeper - Fishing Tackle - Bass Fishing Forums

ForeCast Hook Keepers – Regular/Folding

Classic Bucktail Clouser Minnow

5Pcs Elastic Fishing Rod Hook Keeper Fly Pole Rubber Rings Metal

Why Hook Keepers Help - In-Fisherman

hook keepers, Rod Building and Tackle Tinkering