Mel Robbins’ Let Them Theory is currently trending across social media platforms.
The idea, introduced by motivational speaker and author Robbins, revolves around releasing the urge to control other people’s actions and instead concentrating on your own reactions and peace of mind.
“When you ‘let them’ do as they please, you actually gain more control over yourself, achieve emotional calm, and improve your relationships,” Robbins writes.
Although she’s published an entire book on the concept, most people are encountering it through viral TikTok clips and Instagram reels. Despite its growing popularity, the theory hasn’t escaped criticism — with some online commenters arguing it enables people to tolerate bad behavior and remain silent when bothered.
To better understand the idea’s strengths and limitations, three psychologists weighed in on what’s valuable about the theory and what to approach with caution.
Why the Let Them Theory Is Resonating
Clinical psychologist Jacqueline Baulch from Melbourne/Naarm believes the theory’s simplicity has fueled its viral success.
“Pop psychology often gets dismissed, but what resonates with the public matters — because those are the issues my clients bring up,” she said.
She pointed out that it’s a misconception to believe only complex theories have value.
Sara Quinn, clinical psychologist and president of the Australian Psychological Society, added that the theory is practical and easy to recall.
“When people are overwhelmed, they can remember to ‘let them,’ and in doing so, practice letting go of things beyond their control,” she said.
The Concept of Releasing Control
Dr Baulch explained that the theory highlights how we sometimes try to steer others’ actions to suit our expectations or needs.
“Recognizing that tendency gives us the space to redirect focus to what we can influence — ourselves,” she said.
“It offers a moment to pause and ask, ‘Is this something I could let go of?’”
Dr Quinn noted that people often feel powerless over situations and others, which can lead to anxiety, fear, and a desire to control. Letting go helps reclaim emotional energy otherwise wasted on the uncontrollable.
Mary Goslett, a clinical psychologist and Yuin Budawang woman, emphasized the theory’s encouragement of reduced reactivity.
As an example, she described a situation where someone might hear gossip about themselves.
“You can have an over-the-top reaction, or you can pause and choose not to engage,” she said. “It’s about giving yourself breathing room before reacting with pain or anger.”
Is There Psychological Evidence Behind It?
While Robbins’ Let Them Theory isn’t a validated psychological framework, Dr Quinn noted it draws from established therapeutic approaches.
For instance, it aligns with radical acceptance, a core element of Dialectical Behaviour Therapy (DBT), which encourages accepting life’s realities without resistance to reduce emotional distress.
It also reflects principles from Acceptance and Commitment Therapy (ACT), which supports embracing thoughts and feelings rather than battling to control them.
Attachment theory, too, underpins some of the theory’s ideas. “Secure attachment is about accepting our emotional experiences and relationships in a non-judgemental way, which mirrors the Let Them philosophy,” Dr Quinn explained.
Ms Goslett added that elements of Transactional Analysis (TA), Cognitive Behaviour Therapy (CBT), and the well-known Serenity Prayer can be found within the theory’s core message — about focusing on what can be controlled and letting go of the rest.
What Comes After ‘Let Them’?
Dr Quinn pointed out that while the Let Them Theory can be liberating and help prioritize personal wellbeing, it risks promoting individualism at the expense of relational problem-solving.
“Healthy relationships and good mental health aren’t built on mindset shifts alone,” she cautioned. “Human relationships are complex — this shouldn’t be seen as a cure-all.”
Ms Goslett added that in collective cultures, like Indigenous communities, relational accountability is essential. Quoting Morgan Brigg and Mary Graham, she explained that relationalism is about interconnectedness and shared responsibilities — a contrast to the individual-centered focus of the Let Them Theory.
“It’s not just about ‘me,’ it’s about ‘us,’” she said.
She also warned against using the theory to sidestep personal discomfort and growth opportunities.
“People can be tempted to avoid pain, but it’s often a space where deep growth happens,” she said.
