Ik makes some points...
but just to let you know... my son started swim lessons at 6 months and absolutely loves swimming and has never had any fear of deep water at all.
I tried to shower with DS once - and it was more trouble then it was worth. We wash his hair every night, and that is soooo difficult when you are trying to hold onto him at the same time. And I get really nervous because all the soapy stuff makes the babies really slippery. I know lots of people shower with their babies - but it wasn't my thing. DS loves his bath time, and playing with his bath toys.