It does seem like 50 is a bit too early.
50' is too high for an A330, let alone an A320/321.
50' might be a tad high. 30 is a good ballpark figure.
Goodness , why don't you read what I wrote?
50 feet is WHEN YOU WAKE UP.
30 feet is when anything happens.
It's no wonder you are not learning; you are not listening.