> Popular votes can be held up to four times a year.

https://www.weforum.org/agenda/2017/07/switzerland-direct-de...

At some point you need technology, otherwise it would just get too expensive.

Many states in the USA have had ballot propositions for over one hundred years.

https://en.m.wikipedia.org/wiki/Initiatives_and_referendums_...

Yes but not once every 4 months. People keeping a check on the actions of their representatives needs to happen more than once per election cycle otherwise once the politician gets in they just do whatever they want.