It is hit or miss. I was born, raised, practicing, and educated in Roman Catholic schools. When you are younger you get the bits and pieces of the Bible from Mass readings and catechism classes. When you are old enough for the sacraments then you get more and by the time of a young teen (usually 12-13) before your confirmation (if one is paying attention) you will hear the message of most of the Gospel accounts and Acts.
But sitting down and studying the Scriptures, Bible Studies etc? Again hit or miss. I was blessed to be in a Catholic family and extended family which DID read the Bible and encourage the youngsters (starting with a kids Bible with pictures) to read and ask questions. And from there as I sought, I ended up being invited to a church which had a Vacation Bible School. I eventually ended up in that assembly when I turned adult at 18.
But back to the matter. In Catholic HS we did read some of the OT and did dig deep into the Gospels, Acts and Psalms. The OT studies left a bad taste in my soul. It was all the "natural phenomena" explanations for the parting of the Red Sea, other Exodus miracles and offering evolution as compatible which sent the warning flares up that the RC church did not fully respect God's Written Word.
In college (a Jesuit college no less) I took 4 years of mandatory 'theology' courses. They were not really theology courses. More like syncretism world religions courses; feminism in the Bible (taught by a lesbian); and of course the "Jesus in Politics" course taught by a Jesuit priest who was a former chaplain for the Sandinistas--Liberation theology.
But to be accurate and fair, there are Roman Catholics who love and read their Bibles. Some even join in Protestant and Evangelical church and home Bible Studies and from time to time (shhhhh) they even attend their services or church Bible series sermons. {Don't worry we won't tell the Jesuit re-education squads:)}
Would it be fair to speculate that Catholic Bible study is rather geared to the carnal?