Make voting be based on military eligibility. This is something Starship Troopers was sort of correct about.
You can't be drafted in war time emergencies? You can't vote (also yes I do want women to be draftable)
You're right about military eligibility, but also that you shouldn't make calls for a nation which you will never see. Doubly so if one does not have children. No skin in the game, no alignment of incentives, no moral right to choose.
Even moreso when you consider basically the whole generation relies on leeching off the young and have continued to capture an ever-increasing proportion of public spending across the western world despite owning an outsized proportion of both real estate and wealth overall.
It's also absolute highway robbery (or at least overly-aggressive price discrimination) to charge 6x for speculative decoding, by the way. It is not that expensive and (under certain conditions, usually very cheap drafter and high acceptance rate) actually decrease total cost. In any case, it's unlikely to be even a 2x cost increase, let alone 6x.