Even in the USA, it is fairly trivial to attach a bidet. Being from India, I could not live without it and went on to install it in all our bathrooms. Takes less than 30 minutes to install one, and you can order one from Amazon
I've been using a $30 bidet for a couple years now with not a hint of trouble. Figured I'd test the concept out before dropping real money on a Toto, then realized that I actually like the water cold. I clean the toilet the same way I always have -- with a toilet brush. The bidet does not really change that process meaningfully.
I guess my experience living in a house with one of these in-bowl bidets was very different. It introduced more nooks and crannies than a simple bowl, and necessitated more frequent cleanings.