Well it's a little weird for this story but I like romance so I'd be okay with it. I think it's only weird for this story cause he entered a completely new body however with other stories, they come back to when they were young so they see it as a do over.
Exactly and its not like he lived 5 years first then slowly remembered his past life. He closed his eyes and opened them in a baby's body so he's still an old man
People who go back in time despite having the knowledge of the future and that maturity they are just going back to a time they have experienced this man blinked and became a baby its just weird
But if a 60 year old man for example where to enter the body of a 13 year old boy and went about kissing other 13 year old girls with the intact mind of a 60 year old man........ would y'all be okay with it