Someone suggested to me that compulsory voting was a good idea so the population's wishes would be represented.
As an example, he pointed to how with Brexit, the young didn't want Brexit but the old voted more than the young, so the UK got Brexit (let's ignore the fact that at the time, a majority wanted it, so even with compulsory voting it likely would've gotten through).
In response, I pointed out that compulsory voting favored the status quo and didn't take into account intensity of preferences (as reflected in voting), and gave this example:
Person A loves Kang Kong (water spinach)
Person B hates Kang Kong but is lazy
Person C hates Kang Kong and is not lazy
Person D and E are indifferent
Scenario 1 (no compulsory voting):
Person A suggests eating Kang Kong for dinner and sets up a poll in WhatsApp about whether to eat Kang Kong, with Yes and No as the only options, and votes Yes
Person C votes No
Person B, D and E say nothing. Person B says nothing because he can't be bothered to go to WhatsApp and choose no. Person D and E say nothing because they don't care either way
Realising that there is no dominant option, someone suggests a different option, e.g. Pea Shoots (Dou Miao), which everyone likes. Everyone is happy
Scenario 2 (compulsory voting):
Person A suggests eating Kang Kong for dinner and sets up a poll in WhatsApp about whether to eat Kang Kong, with Yes and No as the only options, and votes Yes
Everyone ends up eating Kang Kong for dinner because a majority voted for Kang Kong. Person B and C are not happy