While smaller roman numerals like those under 20 or 30 may look good.
The problem with roman numerals is that larger numbers are long and clumsy which is not that appealing.
For example.. 377 is
CCCLXXVII (worst case scenario should be 388 if I thought correctly)
And due to standardization, if we are to fit short roman numerals with longer roman numeral,
its likely that even short roman numerals wouldn't look good.
I is likely tiny and looks like a Latin capital letter "i" alone in the dard.
It be cool if they let us customize what to engrave on