I don't have much else to add or comment about The Lost Boys, but here's where I'm coming from:
I saw The Lost Boys when I was maybe 7 or 8 years old, to which I had nightmares every night for the following 2 weeks. I woke up in sweats, cursed by the pain I imagined that I was transforming into a vampire, just like the little kid, Laddie. I think now that it’s a tragic sight to see such a young and innocent person go through such a transformation so early. I’m sure that there are many real world analogies to be made here. All which might look as painful as Laddie’s agony.
For me, it’s a yes, because it was the first film which showed me something like this, it’s a film which approaches the core subject from every conceivable angle, while remaining ever true to the fun, party all night vibe of the vampire plot. I hope this goes into the canon so a 7/8 old me can have some restitution for his sweat soaked nightmares. The Lost Boys does a great job of putting all types of characters through the ringer in their own personal way. No one experiences the same tragedy as another; somewhat true to life, we are all affected by the process of growing up in different ways.