I think I might have an idea.
1 Corinthians 11:20;23-26
“When ye come together therefore into one place, this is not to eat the Lord’s supper. 23For I have received of the Lord that which also I delivered unto you, That the Lord Jesus the same night in which he was betrayed took bread: 24And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me. 25After the same manner also he took the cup, when he had supped, saying, This cup is the new testament in my blood: this do ye, as oft as ye drink it, in remembrance of me. 26For as often as ye eat this bread, and drink this cup, ye do shew the Lord’s death till he come.”
1 Corinthians 11:28-31
“But let a man examine himself, and so let him eat of that bread, and drink of that cup. 29For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord’s body. 30For this cause many are weak and sickly among you, and many sleep. 31For if we would judge ourselves, we should not be judged.”
Maybe Catholics do not want to be partakers of giving spiritual food that might make many weak and sick or fall asleep, (death).