I kind of agree with @tireshark. I don’t think having them hurts you in anyway plus I feel like that if someone at least made the effort to get one, even if it’s kind of cheesy, then they’re at least making some effort to become more knowledgeable.
I am a firm believer in training. When I first started I went to 5-6 events and took some courses in things that interested me. No, they weren’t the all encompassing that spending days doing hands-on would be, but did expose me to different techniques, and products but most of all met some people that if I did come up on a problem and needed some help or more info I could reach out to. I’ve taken courses in waste water management, ladder safety(several), wood restoration, etc.
Do I know a whole lot about waste water management, hell no, but I am more aware of the potential pitfalls and have enough sense that if it may be a problem I’d call someone. The ladder and roof safety courses were right up my alley and parts of it were hands on and they helped a lot. Wood restoration I do a fair amount, but by no means do I know as much as someone who does it daily or has been doing it for years, so it was nice to learn some tips from guys who do a ton of it. Plus you learn all the things you don’t know that you might think you did.
Heck I learn something new every job, so I think taking some structured training helps. I have guys come in all the time to work with me on roof cleaning and I know I’ve helped them.