Neither do I. Never liked bar except fresh out of the package. When bar soap has been on a tray for a while, it accumulates a type of film that is disturbing. Especially that oval, soft, cream like film that develops in the center of bar soap.
Yes, bar soap does slip out of your hands too easily as well. Liquid soap is more efficient. You can squirt a little into your hand, and if you need to delay running water, can handle that situation better. Bar soap doesn’t really provide that option.
The main benefit of bar soap is it lasts longer and can be made from scratch.