I very much doubt it. If you were using your 3DS in 2012-2014 with your attitude you would probably still be on 4.5.
If you do something against the norm, it may cause you compatibility issues down the line, and nobody is going to be able to help you troubleshoot because your set up is completely different to everyone else's and they won't be able to imagine what the problem is. You'll be completely on your own. Maybe it works fine now, but it might not later (granted that's a small risk today, given that 3DS will be EOL in the foreseeable future).