Opportunity is not a boolean "have" vs "don't have". It's a probability distribution, and much of that probability is inherited.

The son of an investment banking executive has much greater opportunity to also become an investment banker than some rando dude from the street, even if it is remotely possible. That opportunity delta is real, and it's largely, almost entirely, due to family ties.

I would not say that I have the opportunity to become a billionaire, even though it is technically possible, but astronomically unlikely.