Technology is not so foolproof that there wouldn't be massive rigging and fraud involved if people all voted electronically.
My healthcare, student loans, education enrollment and all that good stuff are already electronic via a DigiD. I'd give 10 stuffs less if someone voted in my name by hacking instead of you know, ending my healthcare insurance or stealing 1000 euros a month in student loan money.
Things you can already do electronically via DigiD:
- Taxes
- Reporting to the police
- Pension money
- Decide where my organs go after I die
- Literally all of my medical records
- Manage driver's ed
- Request child benefits
- Refresh my ID evey 5 years
Any of these things is worth more to me than my vote.