Cat reaches adulthood at 12 months right?

For common house cat breed, typically need to spend how much a year for these?

1. Dry food
2. Wet food
3. Litter
4. Deworming
5. Vaccination
6. Grooming (if I let pet shop handle it)
7. Neutering (one off cost how much?)

Any other expenses I miss out? Advice appreciated. Thanks!

Also, I read that toilet-training is actually not encouraged for cats? Something something about stretching their agility too much and our sewerage and treatment is not made for cat feces, which will disrupt the treatment process and microbes ecology.

This post has been edited by J1g54w: Nov 16 2020, 10:10 AM