Sorry, lol, that was definitely not my intention! I’ve definitely heard about the “no tattoos” thing before, especially for those following Judaism, but I’d never read the relevant text before, so it definitely surprised me. I may have to ask my sister about it, since that’s definitely her area of study.
I use shampoo maybe once per month, usually only when necessary to remove products such as bleach/dye. Just rinsing it with water is usually enough, but when my hair starts feeling more greasy (maybe once per week), I just use conditioner to help loosen up the dirt. If you’re curious, look up “cowashing” and “no poo” for more information.