When I got my first betta last year, I looked up info and decided that if I was going to do it, I'd do it right.
I think all the half-a***d attempts to keep fish come from people who see them as expendable decorations and I find that really offensive. To treat death of a pet like an inconvenience. When my Rosie was dying, I was distraught. I never figured out what was wrong and there was nothing I could do for her. I had to sit there for about half an hour with her, basically watching her die and being powerless to stop it.
That's not something I saw as a mere inconvenience. It was very emotionally upsetting. She was my friend, not some pretty decoration behind glass.
That's why it really annoys me when I see parents buying fish for their kids and not treating them well. For some reason, it seems to me that people who don't respect animals, often have trouble respecting other human beings.
Teach your kids respect for animals of all shapes and sizes!