It is great that it was your wife's idea. I had a females student once that really did not belong in the water. She could not swim not even 25 yards nor float. I spoke with the husband who i knew and asked what was going on and he fessed up that he put pressure on her. I asked him to take a rescue course to help his new buddy if he could find someone to certify her. I would not until she could swim. She was extremely uncomfortable in the pool. So, great that you have a willing spouse. Wonderful.