I might well still be using tubulars if they had some puncture resistance and modern sealants 25 years ago. But, they eventually became obsolete for my usage.

I actually tried an old "tubeless" tubular. One was supposed to inject a sealant directly into the hole, but it never worked.

But, I'm not beyond trying something new too. It is hard to say how long road tubeless will last. It may be here to stay. Or, perhaps manufacturers will realize that tire mounting issues outweigh the potential benefits of tubeless.

Some will depend on overall durability of tubeless (at least some offerings), and perhaps whether future tubeless tires both are more secure, as well as easy enough to mount without special tools.

Part of the mounting issues include the narrow channels dictated by road use (at least traditional style wheels, they may be getting wider).

As I mentioned on the first page, the Panaracer tubeless is supposed to be able to be mounted with a simple portable mini-pump, which is a step forward.