I've heard it said everyone needs a good cry once in a while. Well I don't think that's true personally, I do know that if your brick wall can't weep it could be a problem. Masonry walls need drainage or weep holes along the base or water can accumulate in between the brick and house sheathing. Collecting water inside the wall can lead to some very bad problems. The sort of problems that can make a homeowner weep.
While inspecting a large Connecticut brick home recently, I found or actually didn't find weep holes along the entire home. At the front of the home they were there, but once I got around to the side and back, nada.
It could have been some ambitious mason's helper went and filled all those little holes without realizing what they were or the same guy could have forgotten to put them in. No will ever know, but making some holes now should not be much of a problem.
What could be a problem is if the walls in this house can't enjoy a good weep when the need occurs.