I'm from a catholic family, but an atheist.
Grandparents on mother side Catholic. Grandparents on father side she was raised catholic he CoE, he was a late convert to Catholicism, but this may have been becuase the process took a long time back then. He was already retired by then. He worked for the Samaritans after he retired which was set up by a catholic priest.
I went to a monastery school and hated it, but would have hated any boarding school. My sister loved her convent school, becuase she is social.
She identifies as Catholic and wanted a Catholic wedding, and opted for catholic baptism for her kids. The reality is she is not religious nor would she know much of catholic theology (nor care). I think she represent many people who identify with the culture of the religion without really practicing the theology.
There is actually some weird law that haven't yet been addressed by the Catholic reform acts. For instance Catholic priest cannot preside the legal marriage, and a Catholic church cannot be used for the legal ceremony (I believe that is correct). Strangely a Methodist priest could do this, becuase it is a protestant denomination. I remember this from my sister wedding, where the Catholic wedding needed a CoE priest to do the legal marriage bit (as many people just register in Town halls after marriage, few people are even aware of this issue). She got married in the country, becuase of the marriage she wanted country house, village church, etc.
It is not so much that there is active discrimination, there is just isn't motivation to change these lesser known laws, which are obscure and don't tend to affect modern life anyway.