Along that vein, I have wondered if the popularity of roadside memorials are a result of the prevalence of scattering ashes. With a memorial spot, the family whose loved ones remains were scattered, has a place to go to pay their respects/remember their loved ones.
as to the OP. I have mixed feelings. I totally see the desire for this from the family, but we have some that either deteriorate or just stay up so very long. The others I see have become pretty permanent. It's like someone has planted a garden with the person's name and they do keep it up. It seems kind of odd to me. I can see a reasonable time frame for roadside memorials, but who's going to tell a grieving mother to stop?