My baby, too, is in the shower with me every day. We use natural bath products, in fact one time my son ate a big chunk of my soap (this was last week, lol) and he didn't even seem to think it tasted bad because it's natural, food grade ingredients.
: I still use a water sling because he is overwhelmed if I put him down on the ground while I lather up or something (he is one year old and walking a tiny bit), but he is absolutely in heaven if he is in my arms. If your baby doesn't like it, then of course you wouldn't want to force the issue, but I think most babies do like it very much.
I'm curious, those of you who make a particular point not to cook with baby in the sling at all, what do you do with them when you cook? This is an honest question, I am not trying to be inflammatory at all, I am just curious. If I am not wearing my son for some reason, he is crawling or standing at my feet, where I would think he would be in just as much danger of splashing hot water or oil or whatever. I would have to literally fence him entirely out of the kitchen, and, well, I can just imagine how he would respond to that.
When he was very small I probably could have put him in a bouncy seat or something, but I didn't. The sling is an even more important tool for me now than it was when he was tiny. He is so calm in it, he just watches everything I do and I can tell his little brain is taking it all in. Anyway, my point is, he would never tolerate me cooking a whole meal if I wasn't wearing him. How do you do it?