FWIW, as an Italian (everybody has a bidet in Italy) I have literally never heard of anyone having encountered this issue, but I suppose it may vary in other countries.
It is a common thing to close the water in the house when you're away for a long time though, but I assumed everybody did that.
If the bidet's line runs outside of the toilet bowl, and fails there, then it leaks onto the floor.
Has that ever happened to you?
In addition, every toilet also has a supply line underneath, running from the wall valve to the bottom of the tank where the fill valve is mounted. Again, these are frequently flexible lines. How is this different than a bidet?
Honestly, I have no idea why Europeans still use their old-fashioned bidets now that washlets have been around for several decades. Why would you want to use two different devices just to do a #2 when you can just sit on one and get it all done at once?
Yes, and it flooded three floors of my house and required months of renovations. Thanks for asking about it. I briefly considered giving up on indoor plumbing altogether.
I can see what the issue with the former may be, thanks.