In many languages, including German and French, using the appropriate prounoun is obligatory. I only know how to use "whom" myself because I learnt French. Abou

In many languages, including German and French, using the appropriate prounoun is obligatory. I only know how to use "whom" myself because I learnt French. About half the time I see English speakers try to use the word, it's wrong and should be "who", and using "whom" wrongly looks even worse than just sticking to "who" (which as argued, doesn't really look bad at all).