I am also apparently "casual". I have one deed (3s and a bit), one premium character, and a priest I sub for impalongs and if I randomly feel like working on my mine for a bit. It's 16-18 USD for two months-the cost of two months of Netflix or one not-fancy meal here and almost half the cost of most other subscription games. No paid expansions, no cash purchase only items, no required "labor potions" or anything annoying like that. I've purchased silver a few times in the 5 1/2 years I've been playing. I've lucked out with sales a few times, but mostly foraging, botanizing, and small sales pay my bills.
Am I a super grinder, everything 90+ toon? No, but I have fun. It's not here to pay my bills. I think the pressure people put on this game and themselves is probably too much if it causes this much anxiety. (I do understand if your country's currency makes one character on Wurm a bit expensive, but most of the people complaining here do not have this situation.)