with multiplayer for mobile, it will add a good impression to this game, because now most games are played on mobile devices, whereas not many people play stardew valley on pc because some can't afford to buy a pc
You can buy a refurbished PC quite cheaply. I'm pretty sure they even sell them on Amazon but I think local electronic shops or repair shops would have such items too. When new computers are returned due to an issue they are repaired and resold at a big discount in many cases. I makes sense to buy that because they're also more likely to work and have quite good specs for a fraction of the cost.
What's wrong with that? Doesn't everyone love a bargain?
In regard to the appeal of multiplayer. I have Stardew Valley on both PC and mobile. I prefer mobile for the controls. I don't like playing any game in multiplayer. The casual solo player aspect of it is what appeals to me.
I honestly wouldn't be surprised if I found out that there was a cross over between the kind of people who like The Sims franchise and Stardew Valley ie many neurodivergent people who like to play alone or to avoid being overstimulated by too much random input.
Not everyone likes the same thing, and that's a good thing.