Families don't avail of third level education, individuals do.
If an individual is unable to afford university at 18 what's to stop them working for 4-5 years and saving for University. They could enter at 22 or 23. The opportunity is there.
Wealth equality will never happen and should not be a goal. Equality of opportunity should be the goal and by and large that exists in Ireland.
There's nothing to stop someone with work ethic and a good attitude doing well.
These individuals also have the opportunity to be an astronaut or President of Ireland, the question is, statistically, how likely is this going to happen. Equality of opportunity is a mirage and is subject to a myriad of outside factors such as political connections, old school ties, religion, etc., to think otherwise is to bury one's head in the sand. Take off the rose coloured spectacles.
During Fine Gaels and Labours ( shame on you ) reign in government, the number of millionaires in this Country increase significantly, while, at the same time, the number of people living below the poverty line increased dramatically. In other words, the wealth divide increased. Equality of opportunity my eye, how can a child even get a good primary school education when they are living day to day in different hotel rooms. This is a problem that will come back and bite Irish society's This post will be deleted if not edited to remove bad language in 20 years time.
Oh, and by the way, families certainly do avail of third level education for their children, ever hear of family education trust funds for little Fiachra to attend college, very big in the USA, U.K. In upper and upper middle class Ireland, Mammy and Daddy usually put aside a little nest egg for the kids education ( their very own little fund ! )