that's not really something you can take steps to avoid. unless you know how to cover your tracks online and don't get it mailed to yourself, it's better to instead prepare for if you get a check. depending on where you're from, they seem to be a bit random. most people can talk their way out of it or just avoid it by not answering the door. in my opinion, you're better off asking for advice on how to deal with a welfare check if it happens. just do your best to seem functional and happy and "normal" and make sure you have it hidden very well. if they ask questions about the SN, either play dumb or suddenly get a hobby that requires it.
i ordered SN a few months ago and never got a check.