just want to fly a Cessna and take family with me.
You'd be surprised about how many people set out with that goal, only to end up flying alone or with 1 mate most of the time. (The mate usually being a pilot themselves!)
That's no criticism of your plans, just setting expectations here!
If you start with RA (say, at Tooradin) there is nothing stopping you from going to a GA school afterwards, spend another maybe 10 hours flying with them and walk away with a PPL.
You'll save a lot of money in training (Probably ten grand) and those times when you don't fly with your family (i.e.: most of the time) you can hire one of their two seaters for $100/hour less than a Cessna.
Something to think about!
(It works the other way around too, get your PPL and then do 5 hours RA, but that obviously won't save you any money training.)