It's already expensive, but we can buy ethereum with the money we have without having to buy 1 eth. We can buy for $10 or $50. ethereum is the second safe coin after bitcoin, although as you said there is no guarantee that we will be rich with ethereum. because the biggest profit is not in expensive coins, but in new coins which have the potential to provide greater profits, but with greater risks too.
You said ETH is expensive, why you still suggest people to buy with small funds?
Simply avoid to buy ETH if you feel it is expensive. There are many other coins as your options.

IMO, if we compared with Bitcoin, ETH is quite cheap. Bitcoin hits a new ATH, Ethereum still doesn't reach its ATH. Since the current price is below its ATH, it is quite strange if you assume it is expensive. I'm curious what price do you consider as cheap price for Ethereum? By the way, please don't compare ETH with new altcoins because they are incomparable. The new altcoins are very very risky, Ethereum is a safe and recommended coin.