Ha depends on what you mean by "meaningful."
I don't remember too much of my initial diabetes instruction...at all. I think because I was 13 they were trying to tell my parents most of it, but my parents kept trying to explain that it was my condition and I was old enough to handle it so they could explain it to me - which they promptly didn't do. I do vaguely remember someone holding up two water bottles with red water in them, one of which had a bunch of beads in it to simulate what fat looks like in the blood stream.
When I first went on the insulin pump shortly thereafter I was showed how to insert it but it was made clear that aside from my I:C ratio with which I was allowed to adjust my dosing, I really wasn't allowed to change anything as that was for the endocrinologists to do. A zillion allergic reactions to infusion sets later (and no further education), I quietly went off the pump and went back to NPH and Humalog with what I "remembered" as my insulin dose.
I was on NPH probably until shortly before college when they put me on lantus, set my dose and then promised to explain to me how to adjust my lantus dose if my activity ever increased. That doctor left my state shortly after that, so the education never happened. My next endo then just put me on levemir because he liked it better and that was that.
Shortly thereafter I tried the pump again and, once again (even though I was now 18) my pump education was "Don't correct until you're 300 and then just take 5u and wait, don't make any changes to anything, here's your I:C" That pump lasted 6 months before I got tired of not having any better control and really no help from anyone. So back to levemir it was. No one mentioned anything at my next appt, so there I coasted.
I changed endos again (not sure why) and he prescribed symlin (i.e. gave me a dosage and said here you go) and gave me the formula which I now know to be my ISF - though, he never explained that and, as smart as I am, it took ages before it clicked and I realized what it was. The symlin lasted a month because 1)the side effects were terrible and 2) he refused to write me a prescription, instead preferring to give me his sample pens he got from the rep.
My next education was the third time I went on the pump (after I got a CGM and self started) and the nurse couldn't keep in her head that I was a type 1 and that I wore my CGM all the time, not just when I was told to. She didn't do many animas starts, so she had to read the instructions and then explain them to me...which I could have done myself - and for some steps needed to do anyway. This time it's worked out much better, but that's mostly because I do a lot of research myself and have taken a much more active role in my self education.
tl;dr I don't think I've had much meaningful instruction either...