I like to speculate that our resurrected bodies won’t really be frozen at a certain age but that we’ll retain aspects of our entire lifetime, just perfected.
Christ often appears as a child. As we will be similarly outside time at that point, all of our ages may be somehow wrapped up in our appearance. Don’t ask me to explain how LOL
I think we will be able to will our bodies to appear at whatever age we want. I am 61 and I prefer the way I look now than the way I looked when I was 33... Well minus the extra weight anyway.
Many recountings I have read from near death experiences say everyone in heaven is young. No old people.