No , I dont expect my parents or inlaws to help out.
My inlaws were never helped out by their parents even as teenagers. Both were made to work from an early age, in fact my MIL had to pay her parents bills even mortgage when she was just 18.
Because their parents were so lax in paying for anything ( not just lax, but abusive parents .. the stories I could tell )

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They are very generous with us, but we dont ever ask and they never pay for major things, but did buy all baby furniture for both of their sons when they had children. It was her gift to us and my BIL and she is so happy to be able to do it.
Mil even bought my DH's DS20 a life insurance policy when he was a baby, and last week when she found out my DS7 doesnt have one, she went home and promptly bought him one. I never expected it, so sweet of her to do it.
I didn't expect it, such a wonderful gift.
I am grateful for all that both sets of grandparents do for us, but never ever expect it .
My parents offered to pay for private school for our oldest when he was young (my stepson) very unexpected , the child isn't even their blood , but they love him and knew we were newly married and with child support etc we really couldn't afford to send him . WE found another way to send him, we didn't want my parents to be responsible for all of that money, but they did help with uniforms and some fees.
We are truly blessed and very thankful for the help we have had over the years. Now that my oldest is in his 20s, we help him too and will continue to do so even when he has children as we will do with my youngest . I will never be my kids main source of income .... it isnt our job, but as with my inlaws, we will enjoy helping them a bit.