Just like a 30-year-old bottle of fine wine improves with age and time spent in the barrels, leather goods improve with natural patina.
A patina on a leather surface is only a manifestation, a symbol, of the natural ageing process of a natural product.
Therefore, the leather patina has zero impact on longevity or resistance. In any case, as mentioned above, it only increases the beauty, value and feel of the product.
A patina does not affect the longevity or strength of a product. In any case, it only increases the beauty, value and feel of the product.
Don't fear the patina, embrace it!