As far as I am concerned I have never approved of all we see defined as born again or physical acts in the church of being born again or some person versions of receiving the Holy Spirit and all that.
Jesus used "born" for a reason.
Being born is a process. Water breaks, contractions, move down the birth canal.
Who knows how fast that can happen or could take hours.
When we are "born again" I think this takes us a lifetime of birthing because there is so much of us to get out of the way and I think we really will be "born" like when our feet leave the birth canal is like when we die and leave our bodies.
With some they mature quicker than others, there is no "program" or "formula."
The two are comparable and both are a process.
Until you've lost all faith in humanity you will be forever blind.