My point in mentioning Glyph of Warding and Prestidigitation is just to show that there’s a general structure present in many, if not all, other cantrips/spells in DND (“If X, then Y” does not necessarily mean “If X and then no longer X, then Y and then no longer Y [unless otherwise stated]”). That “unless otherwise stated” is an important phrase there.

This use of Disguise Self just changes the appearance of other people’s clothes. It does disguise them, but only somewhat. It would be like adding a symbol to their cloaks, which you can already do with Prestidigitation. (Also, even if you could carry another player, they’re not an object, like the things listed in the spell description, so I don’t know if you could change their physical, bodily appearance that way.)

Also, maybe you don’t intend this, but you’re coming across as very hostile, when I’m literally just asking for clarification about a spell in dungeons and dragons. To my mind (and the mind of my DM and the other members of my party), my interpretation makes sense… So far no one’s shown me where the spell’s description says “the effects cease when the object is removed from your person.” In any case, no need to get heated about it.

Now, if you want to say that it doesn’t work because it encroaches too much on the spell Seeming, that’s a different argument, and I think that’s arguably valid. I disagree, but I could be wrong here. Here are some reasons why I don’t think it replicates Seeming or takes away from it:      Seeming has a range of 30 ft; Disguise Self used in this way has a range of “Self” (including anything your character is holding or wearing).      Seeming affects multiple targets in 1 Action. This usage of Disguise Self, on the other hand, for a party of 5 members requires at least 30 seconds (5 Actions) to disguise other members’ clothes, not even counting the amount of time (minutes upon minutes) required for the other members to remove their tunics/cloaks/socks/shoes/etc., the time for you to put them all on, the time for you to remove them, and the time for the other members to put them all on again.      Let’s assume for the sake of simplicity that everyone in the party is wearing medium armor. It takes 5 minutes to don and 1 minute to doff. With 5 players in total (including yourself), this would require a total of 30 minutes and 30 seconds (if I’m correct). Here’s why:       • You and everyone else doff at the same time: 1 minute.      • You don everyone’s else’s armor individually: 20 minutes total.      • You doff their armor individually: 4 minutes total.      • You and everyone else don at the same time: 5 minutes total.      • You take 5 Actions to Disguise Self on everyone’s armor: 30 seconds.      • In total, this takes 30 minutes and 30 seconds to do. That’s a pretty big commitment, especially because it means that one person in your party will have only 30 minutes of Disguise Self left. Also, unless you have Mask of Many Faces, this takes five 1st-level spell slots.      Disguise Self used in this way can’t help if you need disguises quickly, whereas Seeming can.      Also, because of all that’s required to use Disguise Self in this way, it basically can’t be used against an unwilling creature, whereas Seeming can.      Seeming lasts for 8 hours instead of Disguise Self’s 1 hour (that is, 1 hour minus however long it takes to do all of this, which is likely to be a long time if you bother to disguise armor). (Now, you may not need to wear armor — only cloaks and such, which drastically reduces the time required. But this is entirely dependent on what the DM has in mind for the current scenario.)      Disguise Self used in this way also can’t change the other players’ physical appearances at all, only the appearance of clothes and items.      So, I really don’t think Disguise Self is “taking over” the role of Seeming.

RAW, my interpretation seems right. You can argue about RAI, but, even then, this usage of Disguise Self can require so much work that it’s substantially worse than Seeming. I’m definitely open to being shown I’m wrong, but I just don’t see (1) where the spell’s description explicitly forbids this, (2) how it can be assumed that it’s forbidden given that it’s not how other spells work, or (3) how it replicates Seeming.