Well, the purpose of ATH is to cash in to buy bitcoin and cash out to sell bitcoin, and cash out are more in demand as the adoption of crypto is still very small, we can't spend our Bitcoin for our basic needs since only few of businesses are accepting Bitcoin and massive adoption would only happen if there's a full regulation to the market which might take time.
Adoption is still on the move in crypto but it doesnt mean that we can already directly make use of it just like on what weve been doing with fiat.
For now only buying and cashing out would be the primary operation of these crypto atms.It will still takes time though if we do able to see further
usage.