I've paddled sea kayaks for 13 years and I think the concept is OK but as others have mentioned please get some training. A traditional (think "sit in") kayak is not the best to rescue someone who is in a state of panic. I have done a fair amount of rescue training including towing boats and people and a SOT would be the most practical I think because you could drag someone up on the boat (maybe) but most importantly you have a much easier time getting back on (in) the boat if you do get dragged in. During my training (it's really a lot of fun) it was common to have the person doing the rescue to get flipped in if s/he was not careful for the first few times.
I'm not lost, I'm exploring!
2008 Jeep Unlimited X-S package