Honestly, if he continues to grow and assimilate himself with his current young self (still learning english so I don't really know how to say it but like if he continues to become a new person and not just an old man in a young body) I think it wouldn't be a problem nor weird if he date his age (physically) once they are adult prenium of course (like in they're 20s or 30s maybe even 40s since they both love acting and want to focus on their career)