Sometimes, genuinely, no. Here is when a coating is worth your money and when we will tell you to spend it somewhere else.
A coating is worth it when it is protecting paint that is worth protecting, and when the car’s life actually exposes it to the things a coating defends against.
That last point matters more than people expect. A coating makes a car much easier to wash safely, but running it through an automatic brush wash every fortnight will still wear it down early. If nothing about your routine will change, the honest maths is weaker.
What it will not do: stop rock chips, stop a car park dent, or remove existing swirls. Correction removes swirls; the coating stops new ones forming as easily.