Maybe they’re not required for life (or a replicator, or how ever you define life). The issue isn’t ANY possible life, but the sort of life that isn’t consistent with origin from natural sets of events, because natural sets of events on biological pre-cursors leads to asphalt.
Well if we’re talking about cellular life (textbook biology cellular life), it needs a working DNA.
Of course you can suggest other ways of building a replicator, that’s fine, but life that uses DNA is life that uses something that wouldn’t emerge from a random set of chemicals in random concentrations, nor would it emerge even if you had even the functional groups floating around in solution.
The issue is NOT building any life, the issue is overcoming the things like the law of large numbers to build SYSTEMS like a DNA transription, translation, and a copying system.
There are lots of ways to build time keeping piece, in fact infinite number, but that doesn’t negate the improbability of the design. To quote Paley:
In crossing a heath, suppose I pitched my foot against a stone, and were asked how the stone came to be there; I might possibly answer, that, for anything I knew to the contrary, it had lain there forever: nor would it perhaps be very easy to show the absurdity of this answer. But suppose I had found a watch upon the ground, and it should be inquired how the watch happened to be in that place; I should hardly think of the answer I had before given, that for anything I knew, the watch might have always been there. … There must have existed, at some time, and at some place or other, an artificer or artificers, who formed [the watch] for the purpose which we find it actually to answer; who comprehended its construction, and designed its use. … Every indication of contrivance, every manifestation of design, which existed in the watch, exists in the works of nature; with the difference, on the side of nature, of being greater or more, and that in a degree which exceeds all computation.
— William Paley, Natural Theology (1802)