Depends entirely on how well funded the post system is gonna be. Plus information stealing

Even if you do, it's hard to tell if it'll be legitimate human interaction or just someone using AI.

AI has infiltrated everything. There is a pen pal app that acts in a similar way to snail mail. You get a limited number of stamps and send letters to people that take the approximate time to reach the other user based on how far apart you are irl. A couple of years ago the app became infested with people using AI to write their letters.

People have become incredibly lazy in every regard. I'd rather be a recluse than bother trying to chat with a society that has to use AI to speak on their behalf.