it just feels like a game!
Actually, this is a game, and like any other game it has gaming conventions, one of them is more frequent ore generation. It's not possible to build a furnace to smelt iron from rocks in field IRL using only small wooden table. Or make a lightbulb. Or make a circuit. Or dig golden vein that is 400m below your house. Games use conventions as IRL you can't do these things without huge civilisation industry background, and without proper knowledge, technology and a lot of time. There is a game genre that tries to replicate reality as much as possible - simulators, but Rising World is not a simulator, it is a survival building game, and like others game of that genre it share similar conventions with them.
In the Java version there are also not ore stones, and nobody complained...
In java version ores can generate on surface, in Unity - not. Ore stones (which has only iron) is a way for players to start progression as iron is a basic starting resource at this moment as Avanar mentioned above. All that you have without iron is a basic bench and stone tools, that's all. This is not enough even for collecting materials for your base.
If you want to search iron for dozens of hours just to build a workbench - it's up to you, just change ore density in world settings (at this moment boulders are not configurable, but they will in the future), but please don't force all others play as you want. Rising World is not a game about grinding iron, and I hope it will not become such game. Finding resources for your needs is a good thing for survival games, but it should not be above specific limits. Previous version don't have iron boulders (they were rare), and ores were deep underground. As a result all that you have were stone toos and primitive bench. You were not able to even make a storage. And yes - you can require many hours up to several dozens just to find a starting amount of iron. I don't like such approach as the game transforms from fun and interesting into "iron searching simulator", which is boring. If someone want a world with rare/without ores - it is configurable, others deserve to play a fun game, not a grinding simulator