His parents were a GP and owned a pharmacy. They just didn't get it for him/them for whatever reason.
They certainly could have afforded it if they wanted to.
There's a massive difference between just not having something as a child and not even being able to afford it at all.
I love these Tory twat stories where they try to relate to normal people. They're so far off the mark it highlights just how clueless they are about real life.