There is no harm in starting small, investors who have little sizable amount that can accumulate fractions should make use of the opportunity. I would also advise small sized investors to conserve some capital in order to get more fractions at a lower price during the dips, that wouldn't stop them from the little they can DCA, the most important is doing the whole process of investment right without exceeding their financial ability.
Consistency can trigger growth in investment activities, because even starting with small fractions, if done consistently, will continue to grow.
Patience for everyone in starting will be the basic trigger for the desire to continue increasing the number of assets they own.
Small fractions don't matter because what needs to be considered is how to continue growing. Unlike people with large capital, they can accumulate larger amounts under certain conditions.
If we don't have a large amount of capital to invest then there are methods that can be done, such as buying whatever amount we can afford using the DCA pattern or collecting money first and buying during a big market downturn.