Answer to the OP.....no, there was never an age that we have been irritating to our AC just because we are older.They were either always irritated with us or they weren’t.
They grew up, became adults and could of course find us irritating at times, just as we find them irritating at times.
If you find that you are always pleasant and obliging to your AC and they are often anything but in their language and behaviour to you, then become less obliging to them in future.They can’t expect anything else!