No! You're missing out on lots and lots of cool stuff, so sticking with the classic editor should not be a long term solution. It might be fine for a few months as plugin and theme developers work out their issues with Gutenberg, but I'd suggest switching it on as soon as you can.There are always going to be people who don't like interface changes, and such is the case with this release too. The awesome teams in the WordPress forums are helping those people where they can and I assume a few of them will continue using the classic editor for now.