Tires go bad with age. Most tires shouldn’t be kept much longer than 6 years. So even if they are not driven, they will go bad. I don’t have a garage, so I can’t keep my tires out of the sun and heat.
Also, many people do change oil on a timely schedule, not miles basis. sure fluids and tires do not amount to much, but how familiar are you with Michigan’s nation’s highest insurance rates? Michigan is a no fault state AND mandatory unlimited insurance rates. Even for my 2001 Honda Civic, I have to pay $90 a month for MINIMUM liability.
If we put insurance at $100 a month, 100 x 12 = $1200 a year. It'd be surprising to hear of anyone spending an extra (wasted based on age not mileage) $800 every year on tires and fluids.
If someone changes their oil every 3 months even if they only drove 500 miles, that waste of money is unnecessary.
Your first post included the cost of tires and fluids. So I replied about tires and fluids. Your recent post starts out implying they would cost a good bit due to age replacement, but then your post says their cost "do not amount to much." Your post disagreed with me, then it agrees with me.
Regarding insurance, if you haven't already, and I'll put this in bold in case people are skimming this, ask your insurer if there's a discount for not driving a vehicle much. Last I checked, I could get a 35% or whatever discount if the vehicle was driven less than 7k a year. Something like that.