First, obviously duh yes please God in heaven let this happen and happen ASAP but secondly, I feel like Tevye is like Rose, where he’s usually played a lot older than he should be.
If we’re looking at a man like Tevye with 7 children who has been married for 25 years, from a historical standpoint, it’s more than possible Tzeitel was born before he was even 18 and she’s 19 in the musical. So knowing that and just saying he was 18 when married he’d be 43 (very possible he was a couple years older or younger). Right now, Jake is 42 so it’s perfect casting.