You can't play the game with any real degree of proficiency unless you can get comfortable playing anywhere from 5 board to 20 board. When I was young I learned the game playing second arrow and deeper. In those days there were a lot of corner shots around. I had a terrible time learning to play the corner, so I joined a league in a corner shot house, and just kept practicing until I could play the shot. I made a point to bowl leagues in houses that played differently just to gain versatility.
I have always felt that it wasn't walled conditions per se that impedes development as a good bowler, but the homogenous nature of todays walls thanks to the modern machines and the tendency for everyone to set up a shot around 2nd arrow. In the 60's and 70's we all bowled on walls, but some were set up off the corner, and some were set up inside of 10 board. I never practiced in brickyard houses, but with a free arm swing and the ability to move around, I could hit the tough houses as well as anyone else.