They do this even if Church legislation says this:
The priest then takes the paten or ciborium and goes to the communicants, who, as a rule, approach in a procession.
The faithful are not permitted to take up the consecrated bread or the sacred chalice themselves, and still less hand them on to one another. The faithful may communicate either standing or kneeling, as established by the Conference of Bishops. However, when they communicate standing, it is recommended that they make an appropriate gesture of reverence, to be laid down in the same norms, before receiving the Sacrament. (General Instruction of the Roman Missal no. 160)
It is not licit for the faithful “to take . . . by themselves . . . and, still less, to hand . . . from one to another” the sacred host or the sacred chalice. Moreover, in this regard, the abuse is to be set aside whereby spouses administer Holy Communion to each other at a Nuptial Mass. (Redemptionis Sacramentum no. 94)
If you have priests and seminarians like these, men who are consecrated to perform holy actions, men who are expected to teach us what Holy Mother Church teaches, men who are supposed to tell us what is right, not show us what is wrong and openly defy the Church.
If you have men like these, who needs Martin Luther again?
No wonder a lot of liturgical abusers are out to destroy TPC.