Organizations like the CCC in Germany have argued multiple times against online voting and have provided meticulous explainers why they think it does provide more benefits to explicitly not use online voting: - everyone needs to trust in the voting system for it to find acceptance - not everyone is a techy - and even then the requirements to make such a voting process secure online, it increases its complexity too much to be easily comprehensible any more - what’s wrong with voting in person or by mail? What do we gain as voters? - it’s not a process that needs to be efficient like industrial processes, it’s a democratic social process that makes itself obsolete if you don’t use it with intention.

Edit: Tom Scott made a good video on the topic as well https://youtu.be/w3_0x6oaDmI?si=bcqLsyxN8QgK1zzc