In that case, I can't really tell you not to do it since you seem to have no other choice.

In America we prefer to feed regular Norway rats or mice because ball pythons can be picky eaters. If someone from here wants to feed hamsters we tell them no, it is not a good idea because their snake can become stuck on them and never want to go back to rats or mice.

Your case is a little different though. If you have no choice and that is what 90% of snake owners feed in your country, then I guess that's what you have to do until you are in a better living situation and can feed something else if you want.