In an earlier formulation of the question that lies at the heart of the OP, I asked "Other than the arguments we have about it, how would you live differently if your view of the age of the earth turned out to be wrong? I wish I had retained the italicized part in the OP because it would have clearly kept out of scope situations like that of people like you mention: Ken Ham, Hugh Ross, and so on. I certainly understand that those whose livelihood is dependent on public perceptions of the respective staked out position would face enormous changes. However, my interest was in how we live - entirely independent of factors such as the shame in having been wrong.
In other words, the age of the earth per se sounds like such an esoteric subject to me. That’s why I’m searching to find if there are people for whom the perceived age of the earth changing had practical implications.
You seem to be saying that @Casper_Hesp would face special challenges, but I can’t tell how many of them fall in the “out of scope” category as opposed to practical challenges. It looks like I’ll be told in posts farther down this string.