You act and talk like a teenager. Black lights and a fog machine..
And I hope he stays that way. Of course, I hope his communication skills increase, but that is a matter of syncing up with the community that he is typically interacting with. He writes on the web as if he's texting his friends in a rush, tough to read, so yes, fine, castigate a BIT if you must.
But fog machine and black lights? That's the START. Go get a couple of green lasers and a bunch of little handheld mirrors and a bunch of large clips to be able to place the mirror anywhere. Put the laser down, have it hit a mirror, aim that to another mirror, and wrap the laser around the room, and between sets of mirrors.
I'm almost 50, and see no reason to have less fun simply because some old fuck (or someone who thinks he is "mature) thinks it is a bit juvenile.
Tripping is to see/feel "different". Black light is a great start to disassociate yourself with the "norm" as you try to relax. Those glowing colors are attractive to relax and gaze into, add a poster like "Building a Rainbow" and you can fall into it with the music and have a hell of a time.
Also, it gives you a BIG contrast between the glowing stuff and the background in your environment. The external colors are often the start of the internal visuals, which then envelope your field of vision. The the dark spots in a room under black light leave a good area for your tripping mind to fill in.