Betta's are so under-rated

i just feel that people need to know that they do not live happily without proper care.
I have seen multiple posts on other boards about people keeping them in .5Litres of water

With no filter, heater or partial water changes (they use ammonia absorbing stuff) i just feel it would help so much.
I am not sure of the stats but at least 1 in 5 people will buy and keep a betta in their fish keeping hobby and seem to be most popular with the young ones. Please lionfishy let us educate people