”Good for all three sides," implies that a particular situation, decision, or outcome is beneficial or advantageous for all parties involved. The phrase "all three sides" refer to three key entities, groups, or individuals affected by a given circumstance. Here's a general breakdown of what it could mean:

1. Mutual Benefits The interests of the first party are met and satisfied. The second party also gains advantages and positive outcomes. The third party experiences favorable results.
2. Balanced and Fair The situation is characterized by fairness and equity. The needs and concerns of all three sides are considered and addressed. There is a sense of fairness in the arrangement.
3. Harmony and Cooperation The interactions between the parties are cooperative and harmonious. Collaboration is encouraged, fostering positive relationships. Conflict and disagreement are minimized, contributing to a positive environment.
4. Sustainable The benefits are not short-term but contribute to long-term stability. The arrangement is designed to be sustainable, ensuring ongoing positive outcomes for all parties involved.
5. Win-Win-Win Situation Each party gains something valuable, creating a "win" for everyone. The interests of one party do not come at the expense of the others. It goes beyond a zero-sum game, where one's gain is not necessarily someone else's loss.