The following paragraph has unity problems. Can you identify where the problem is?
Cats are not always good pets because they lack cleaning habits, and an unfriendly personality. On one hand, cats are very smelly, and they hate water, so it is very difficult to give them a bath. On the other hand, cats are very expensive to maintain. Vets are usually expensive and cats get sick all the time, so you need money to have a cat. In conclusion, before getting a cat people need to be aware of their hygiene issues, and the money they need to keep them healthy.