It does not, but I also don't see any way that a $750/mo provides a viable path to remove a $1500/mo average (and 150+% of that for many) Social Security payment for people who contributed to FICA over their entire working lives and properly planned on that money as part of their retirement finances.

Morally and politically, I can’t see how to make UBI replace social security. You might be able to make reduced UBI payments to seniors, but at some point you have to ask “what does the U in UBI stand for?”