although the resources are few, depending on where you are from that is
locking is pretty big
In france and Japan there are a large number of dancers who lock, although they may not be properly educated on the dance there are still a LARGE number of lockers
Here in North America there are a lot of OGs who are still active but you have to go out searching for them and attend their classes, the resources here are not as readily available but the big areas, in my opinion are: LA and southern cali/Vegas (for the large number of OGs that live there), NYC, Philly, Montreal & Toronto
instructional videos are rare and not the best way to learn the dance, but older footage, like soul train and performances by the lockers are becoming more and more available from when i started out 4 years ago
Popping seems to be bigger here in north america, unfortunately people see locking as a clown dance so it doesnt have the same rough street appeal popping can tend to have