Both bartering and mutual aid have their advantages and disadvantages. Bartering can be useful in situations where cash is scarce, and can help build relationships between people in the community. However, it can also be difficult to organize and sustain over the long term.
Mutual aid, on the other hand, is based on the principle of solidarity and can help build community resilience. However, it can also be difficult to organize and coordinate, especially if there are many people involved.
Ultimately, the choice between bartering and mutual aid will depend on the needs and circumstances of your community. It may be that a combination of both is the best approach, as each has its own strengths and weaknesses.