That's what grandparents are for. Growing up my immediate family lived in the same neighborhood. My mother's parents lived two blocks away and walked over. My fathers parents lived ~15 minutes away. Everyone worked locally. Baby sitters were always named grandma :-)
Now you have to move across the country for a lucrative tech job, leaving behind your support network. You either plan for these things or deal with the consequences. Though I have a feeling many young tech oriented people starting their careers dont have family on their minds...
And lastly, it depends on where you live. An ex military friend moved to a shitty town in PA to be near his mother and sister and bought a hose using the GI bill. He has a federal job, five kids and a stay at home wife. Pretty wild to have a family of seven these days but he is happy and doing good. Family support helps big time.