If you really really want to fly then there's nothing stopping you.
Are you interested in earning a livable wage that'll provide a lifestyle that your wife and child expect/deserve?
If you're financially set up that you can do this for "play money" then go for it. If you expect to earn a decent wage and have a good pension then I think you may need to rethink your options.
I'd research the wages earnt by FOs on t/props and chieftains and then make a decision based on reality (financial). You'll be an FO on a t/prop for 2-3 years min.
Just because you can hold an ATPL at 1500 hours doesn't mean you'll be offered command. Often the hours are higher so factor that into the equation too.
(eg 2500 etc)