Handrails are increasingly becoming sources of liability. Especially this type that does not get secured into the anchor with an anchor wedge. Not only can that handrail be turned or twisted, which cannot offer much needed stability for entering the pool, but it can also be lifted up and out of the cup, both can make it very scary, especially for the elderly that are relying on the handrail for stability.
Having said that.
If this never gets past private residence use , meaning no commercial use, can be useful if:
The immediate family has been forewarned of the limits of this handrail.
Assuming immediate family wont sue (forgive the implication).
And It is removed before anyone but immediate family is to be using the pool area. This can still be a problem if someone not necessarily entering the pool grabs the rail and it doesn't offer the implied stability, and winds up entering the pool (god forbid head first).
My intent is not to scare you or belittle your ingenuity, or work, but to show you a view you may not be aware of, and to protect you, the home owner.