While impact protection work gloves provide the best protection, They often lack grip and take longer to dry if you get them wet. For this reason, we like to also carry these gloves. The nitrile coating adds to the grip, which helps a lot when dealing with the water hookups. They also dry much faster, another benefit for using them when dealing with the water hookups.
My suggestion is to just get a pack of the biggest size needed for your family. If too large for some its fine, they aren’t used long and that makes them easier to take on and off (especially when wet). An added benefit for these is that you kids can wear them too. Yes, they will be monstrous, but sometimes they enjoy fitting into their parents stuff. Getting kids to lend a hand is all about the fun.