Because it doesn't solve a real problem. If you try to articulate why it is that a particular old son is president and then dig in a little bit, it quickly becomes apparent that the real problem is something else. For example, in this case, the problem isn't the Biden is old. The problem is probably somewhere in how the Democrat party of the US is picking candidates.

> Putting politics aside …

I admire your optimism in saying that then putting a political question to the room.