veimloachshuv: First of all obviously you mean if they want to.
I wouldn’t think that the Chiyuv of a talmid chochom to be dressed
clean and respectable (yeshiva boy = potential talmid chochom)
to include being up&up w/ the style!
To answer ur question first of all between me & you how many
yeshiva boys are dressed “mamish” in the height of fashion really!!
I dont mean wearing calvin klein ties & flats w/ stitching
& D&G glasses while wearing dress pants that are 100% wool
(btw seperates in style are mostly Poly Blends)
but most yeshiva guys who think their in style
are just barely keeping up w/ the times!
& I don’t think that’s included in Chukas Hagoy!
If we were to stay w/ the old we’d be wearing sandals & robes
no Borsalino’s 4 sure. do you get my point? Even the Rabonnim’s
hats have changed over times as well as other garments.
now that i made that point.
i think in my humble opinion
that boys who are serious of becoming the next generations
Roshei Yeshiva & Gedolim (the real ones) should not be so into their
clothing & to focus their energies on learning torah & Halacha
thoroughly & working on themselves until their middos are exemplary,
not being busy with, are we doing two pleats or flat front now?
However the rest of the Hamonei Am if they want they could
dress in style (note what i pointed out on top)
we dont have to look like aleins
but i dont think that “shpitz style” should be a
thing for any ben torah or bas yisroel,
Especially if current styles clash with Tznius.