I meant breaking your fast with dates is kinda arbitrary not the fasting itself. Fasting is very much not arbitrary and has a very special meaning since it's one of the few things we do solely for God and God alone. Also you can fast outside of Ramadan as well and get additional blessings from it. The prophet would routinely fast on Mondays for example. I think the only days you are not allowed to fast on is Eid because it's a time for celebration.

There's no rule that says you _have_ to break your fast with dates. We just do because that's how the prophet usually did it. Dates have no inherit religious significance. I eat them throughout the year because they are delicious and have nutritional benefits and there's some baraqah (wisdom) in things turning out this way.

Even when the prophet didn't have access to dates, he would break it with water or yogurt, or even just salt instead. Whatever he has access to at the time.