This article argues that clever pricing strategies and the ability to current transaction fees payments less than $1 may help speed the adoption of cryptocurrencies.
All those crypto transaction fees are still much bigger than 0 fees that we pay when we give some cash for our purchases at the local grocery. From this point of view any fee decrease is not pushing the adoption.
The marketing side in Bitcoin is something that is really lacking. This is in my opinion a big disadvantage for a decentralized platform. As in anything, there is a need for a marketing strategies. On this matter, there must be an effective and less costly way for people to spend Bitcoin on products and service below $1. This can be helping towards more Bitcoin adoption everywhere. And of course, can push for more merchants to join the Bitcoin bandwagon.
If benefits of using some particular payment methods are so small that you have to promote them aggressively then you are using a bad payment sustem. Same thing is appliable to cryptocurrencies.