Your analogy is flawed, that's not what "lifetime warranty" means: https://en.wikipedia.org/wiki/Warranty#Lifetime_warranty "A lifetime warranty is usually a warranty against defects in materials and workmanship that has no time limit to make a claim, rather than a warranty that the product will perform for the lifetime of the buyer.[6] The actual time that product can be expected to perform is normally determined by the custom for products of its kind used the way the buyer uses it."