The truth is that nowadays any expense you have to make at home is an effort on the family economy.
Maybe the plumbing pipes still don't give you leak problems and the tiles don't fall apart, but possibly you have other reasons that make it difficult for you to comfortably use the bathroom on a daily basis.
The bathroom is one of the smallest rooms in the house. That is why a good distribution of the different elements that make it up can help us a lot to improve its functionality.
The ideal location for the sink cabinet is right in front of the bathroom door, it is the most beautiful toilet to see as soon as you open the door. The bathtub and/or shower is usually placed at the opposite end of the entrance, it is an elongated toilet that takes up quite a bit and it is recommended to place it at the back to leave a large central space and avoid creating a tube effect with an elongated and very narrow space. . The toilet is conditioned by the location of the downspout so, although it can normally be moved small distances from the original location, we do not recommend placing it too far away, as it would make the evacuation of fecal water difficult.
The main reason today to renovate the bathroom is to change from a bathtub to a shower (once there are no longer small children at home, most of us do not have time to bathe and prefer to take a quick shower). Furthermore, when there are elderly people, the shower tray is much safer, reducing the possibility of slips and falls.
There are times when the bathroom is so small that the possibility of placing a sliding door built into the partition would significantly improve access and movement within the bathroom. This option does not involve a large work and always improves the visual appearance of the space, gaining in spaciousness.
Another reason is wanting to eliminate the bidet (there are many people who do not use it and would prefer to use that space for another use), placing a larger sink cabinet, a cabinet with two sinks ideal for couples, etc.
The use of suspended toilets is another possibility to take into account and that provides spaciousness. Visually, the space gains lightness and cleanliness is also favored.
Regardless of your motivation for wanting to renovate your bathroom, there are always options and possibilities that would improve the current situation.