Why don't you think that? You're right that abolishing currency isn't implied by abolishing capitalism, but plenty of anti-capitalists advocate for eventually abolishing money in any form (I assume that's what you mean by abolishing currency, although there are other interpretations), and some others advocate to abolish it as soon as possible (I believe, although I can't prove right now, that many intentional communities/communes have done this).

Communism's long-term aim is ultimately to create a communist society. That is, a public, stateless, classless, moneyless society - goods are distributed by need rather than for wealth.

We don’t want people filling swimming pools with cheese and diving into it.

I actually had to check to make sure some e-celeb hadn't done this stunt for content. I don't think currency is what stops people from doing that, just like how for-profit healthcare systems aren't what's keeping people from injuring themselves.