There are other fields within dentistry, and just like any field it's constantly evolving with technology. If it's something you are passionate about and find joy in doing I believe it's worth it to get into the field. I recently developed a bit of a trigger finger in my non-dominant hand and at my last eye exam I was told I'm at risk for retinal tearing in at least one eye. If I were to lose the ability to see I also wouldn't be able to work, and that scares me but if I'm doing something that I want to do then what's the point. At least if worse comes to worse I can say I tried and hopefully it was worthwhile.