So, I was recently going through Quora, and found this article, this question looks little interesting to me, so I thought to cover this question in AnimeQuack Thread. So, this is what I got through my research on web.
We all know that Doraemon is a super futuristic robot which actually brought to present by Nobita’s grandson. Thus he might uses his advance technology and gadgets to compensate for his lack of fingers.
So, there are basically different possibilities, such as –
1) Doraemon is a robot, thus he might have some kind of advance magnet on it’s handtop to pickup things.
2) Then one more theory suggests that Doraemon’s hands might be equipped with some special features that creates suction, that actually allows him to grip and manipulate objects.
3) Additionally Doraemon’s four dimensional pocket contains countless tools and devices that he can use to solve this problem.
So, here are some theories that actually allows Doraemon to pickup different things. Then it’s just a cartoon shows, and just image Doraemon with fingers, looks odd know? Doraemon is designed to be a robot, thus he might not be given fingers. So, that’s all for it guys, you can read more about how Doraemon died from here.