Investing in a bidet can significantly reduce your spending on toilet paper. Using a bidet is cleaner than just using toilet paper and can lead to fewer cases of rashes, hemorrhoids, and urinary tract infections. The same thing happens when you use the bathroom. Using a bidet instead of toilet paper provides a deep clean that can't be achieved with a single clean.
Water is more hygienic than toilet paper because it gently cleans the area rather than simply rubbing it with toilet paper. Perhaps the misconception that bidets are unhealthy dates back to childhood, as cleaning is one of the first lessons of good hygiene in the bathroom. If you are using the bidet properly and if your bidet is of high quality, you shouldn't have to use toilet paper to clean yourself. A high-quality bidet will clean your back more thoroughly than any amount of cleaning.
However, you may want to use a small amount of toilet paper to dry yourself. If your model has an air-dry function, you may not have to use toilet paper at all. Cleaning is not necessary before using a bidet, but it can be useful in some cases. For example, if you have extra debris attached to your skin, pre-cleaning can clear the way.
For those using stand-alone bidets, using toilet paper first can prevent stools from transferring to the sink. Some people don't clean themselves before using the bidet; if you use the device well, the water pressure in the bidet is sufficient to clean it completely. They also avoid the need to do anything except sit back and relax, which is great news for seniors who want to get a bidet to avoid having to clean themselves. On the other hand, spraying a bidet is gentle and soothing, causes less skin irritation and minimizes the damage that could be caused by toilet paper and wipes.
With hand-held sprayers and modern toilet seat bidets (electric and non-electric seats and accessories), they don't need to be cleaned beforehand, but sometimes it can be very useful. Each person has a different opinion about the right time to clean during the bidet routine or if cleaning really needs to be done. Plus, using a bidet means you'll be flushing fewer wipes down the drain, which is good for cities and municipal sewer systems. But, if you feel like you have a lot to rinse, you'll probably want to pre-clean it with a little toilet paper before using the bidet.
In the end, you don't NEED to clean yourself before using a bidet, even in situations where it might be useful. You clean up quickly to get rid of the messy mass of stool and then use the bidet to do the rest of the work. If you decide to go the pre-cleaning route, don't let the prospect of buying toilet paper discourage you from the savings you'll benefit from after switching to a bidet. Sure, using a couple of squares to pre-clean before each use of the bidet would consume a little savings.
The picture shows how much homemade Nutella was left in the palm of my hand after a minute of rinsing the bidet with and without a previous wipe. If you're looking forward to buying a bidet because of your environmental awareness and want to avoid using toilet paper, you don't need to wipe your butt.