I was referencing a few in this thread that aren't going to change their opinion. There are many that have tried it and love it. It's one of those things, like PPF, where owners that have invested in it love it, those that haven't say it's a waste.Sure you can, if they want to listen and consider the products, reviews, and real-world tests and evidence.
With how easy and quick it is to apply the consumer grade sprays, there's no reason to use the older carnuba waxes. Even some of the pro grade 9H ceramics have easy flash times to work with (ie Tec580).