Doing financially well as a breadwinner in your family is not sufficient enough to encourage your financial growth or stability when you don't optimize to make provisions on how your dependants can also stay financially independent to themselves because over billing can actually weigh your aiming down.
Yes, I totally agree with you on what you just said above about how good it is to optimize making provision on your dependant, because doing well alone as the breadwinner of the family is never the best financial decision to make, because just as it said that a tree can never make a forest, so can a single breadwinner satisfy everybody at everything, Hence, it's important teaching people how to be financially free. Hence, if you are opportuned to engage your family members to be all financially buayant it else the burden off your shoulders.
It is indeed a smart move to invest on people who rely on you. A man who is wise should always understand this that everyone that comes around you or benefits from you should one way or the other contributing something important into your life. It shouldn't be a criteria but you can make them be useful to you without them noticing. If we do not want to invest in them we can possibly give them a task to do which might have take more time from us if we do them. Time is money and the more time we have the more money we can make.
One simple step to do this is to teach them how to make some money or set up a business that they would be managing for you so that they are not only dependent on you but they are working for you and your paying them which is fair enough.