Well, my idea is, you do kneelers and altar rails for the Eucharist under the appearance of bread, and about a couple feet from the end of the altar rail on either end, you have (standing outside the sanctuary) a priest or deacon, distributing Eucharist under the appearance of wine. This invites a standing position. It also limits spilling.
Thus, those who wish to kneel may kneel, those who wish to stand may stand, the whole issue of a long line with people feeling obligated to greet neighbors as they pass them is over. People will come up to the rail and wait there. And those who do not want to will be a minority, so not much of a line.
The whole issue of people receiving Eucharist even though they are in a state of mortal sin, so that no one will know, and so that they do not disrupt the line, will be over. There will be no line. People will be receiving different places, no one will be able to tell.
No one will feel they cannot kneel because others would judge them for it. It will be okay to kneel. I think we all know way more people would kneel to receive if they didn’t feel like others were going to judge them. Once it is encouraged they feel they have permission.
And “Spirit of Vatican II” types get the species of wine at every Mass - AND they do not stand out for NOT kneeling!
Everybody wins!