We are seeing the obsolescence of Legacy addresses. Maybe they will be rare someday and not generated by most new software.
Since there's literally no advantage of using it over SegWit, I don't see why not.
I would say there is one little advan on legacy addresses. You can easily verify a signed message from a legacy address using any Software.
AFAIK, there is no standard to verify sign message from segwit addresses, and even bitcoin Core can't do it. Looks like electrum created it own verification and it is nylon Standard.
https://bitcointalk.org/index.php?topic=2885058.msg29647827#msg29647827