Whose Minhag is it?

                   Whose Minhag is it?

 
R. Y. M. Tukaczhinsky zt"l (Sefer Eretz Yisroel 18-3) writes “ the
Sefardim & Chasidim celebrate Lag Baomer and light fires.”
 
Seems, non-Chasidic Ashkenazim have no such Minhag .(in E.Y.)
 
The מנחת אלעזר 4-60 (Chasidic Rebbe) writes, “ Lag Baomer
celebrations (music & dancing etc.) are only for Bnei  Eretz Yisroel.
In Chutz La'aretz, these celebrations are strange and haughty.
כזרות יחשב וכיוהרא  “
 
 Seems, in Chutz La'aretz, even Chasidim have no Minhag of
celebrating Lag Baomer.

Not to deviate from your  Minhagim & Mesorah means
you don't search for & follow new Minhagim, your
parents/ grandparents haven't heard of or done so.