I would put $1 a day in Cryptocurrencies, but I would not actually invest daily but rather make a weekly, monthly or quarterly purchase instead.  That is due to probably insane transactional taxes that would leave you with probably less than 75% of the actual investment.

My opinion is, you should not look at Bitcoin as some investment just for the wealthy people.  Imagine some people bought 1 Bitcoin with just $1 a decade ago.  Think about it.  Unknowingly, you might be purchasing $1 worth of Bitcoin that could actually become worth hundreds of bucks years from now.

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Regards,
PrivacyG