beginning judo sticky? How to find a good dojo or something.
We do have to be aware that the influence of BJJ and other sports will include people wandering into judo using what they know about how to judge a good bjj school or tennis school or whatever to judo. There are definite differences in what a judo dojo emphasizes in a good dojo, especially for children and recreational judoka (if you're an elite level judoka or looking to make that leap into elite level, then yes, the questions are a bit different, though they still don't involve much in terms of lineage beyond how other students of that dojo have performed at the elite level).
Other sports DO highly stress lineage. We stress methodology, safety, atmosphere, openness, etc. much more than we stress whether or not the head instructor has 50 million credentials. Yes, we even make jokes at the expense of other martial arts and whatnot where the lineage involves a mystical mountain somewhere out East where some recluse "transmitted" knowledge or gave secret scrolls involving things like dim mak to the guy trying to run a martial arts school. It's because of the proliferation of that sort of mythology that some people are actually asking about lineage - the lineage needs to be valid and not a result of a mail in dan mill.
Anyway, a parent into martial arts but not necessarily judo isn't going to know this stuff, or look for USJA/JF/JI or whatever association. A parent into MA may also wonder why there are no junior black belts since that's quite common in other MAs.
Asking about a particular instructor? meh - hope the guy got a few new students as a result of the responses to this thread before it was changed. But, the original question is still valid, just as pointing out that lineage doesn't mean as much as association and the stuff we, as a community, find valuable - current coaching cert from a NGB, good facility, happy students, no sign of people doing stuff that's dangerous.