My first real knife was an Official Boy Scout Knife, by Camilus. It is not a locking blade, and I have a few scars on my fingers that are directly attributable to unexpected folding. That is why I preferred my kids to use locking folders.
Be a little cautious with LM knives with "internal" blades. I've seen young Scouts cut themselves while trying to manipulate the handles with the blade sticking out. That is one reason I gave my son the Wave. It is one of the LM models that has "external" blades.