New study uncovers why some people leave their childhood faith and others stay

A latest evaluation from the Pew Research Center suggests that decisions about faith are sometimes made early in life — and once made, they have a tendency to last.

The research shows that greater than a 3rd (35%) of US adults not discover with the faith during which they were raised.

Most of those that leave the religion achieve this before the age of 30, highlighting young maturity as a pivotal period for religious change.

Despite this shift, religion stays a stable anchor for a lot of. A majority of Americans (56%) proceed to affiliate with the faith they were raised in, while 9% didn’t have a childhood faith and remain unaffiliated today.

The findings draw on data from Pew’s 2023–24 Religious Landscape Study, which surveyed 36,908 US adults, alongside a subsequent Center’s American Trends Panel (ATP) survey of 8937 adults carried out in May 2025 to higher understand why people stay, leave, or never affiliate in any respect.

Among adults who proceed to discover with their childhood religion, personal belief and spiritual fulfilment outweigh social or cultural reasons.

Nearly two-thirds (64%) say belief of their religion’s teachings is a significant reason they continue to be affiliated.

Similar numbers point to their faith offering spiritual fulfilment (61%) or providing purpose in life (56%).

By contrast, a smaller share report that community ties (44%), custom (39%), or familiarity (39%) are decisive aspects.

Motivations vary by faith tradition. Protestants (70%) who remain in the religion mostly state belief in doctrine, while Catholics (54%) are barely more likely to stress spiritual fulfilment.

Jewish respondents, meanwhile, are more likely to spotlight tradition (60%), community (57%), and family heritage as central to their religious identity.

For those that have left their childhood religion — including individuals who switched to a special faith (10%) and those that at the moment are completely unaffiliated (20%) — belief again plays a central role, but in the other way.

Many say they lost confidence within the doctrines they were raised with (46%), while others report that religion simply became less important over time (38%) or that they slowly disengaged from their faith (38%).

Around a 3rd (34%) also point to disagreements with religious stances on social or political matters, while 32% took issue with misconduct allegations amongst religious leaders.

The reasons differ depending on where people land. Nearly half (48%) of those that join a latest religion often describe feeling drawn or “called” to a special faith, while 45% stated searching for deeper spiritual fulfilment.

Those who grow to be religiously unaffiliated usually tend to say they lost belief altogether or not felt religion mattered of their each day lives.

Nearly three in 10 US adults (29%) now discover as atheist, agnostic, or “nothing specifically” — a gaggle sometimes called religious “nones.”

About three-quarters (73%) of people that grew up as “nones” remain religiously unaffiliated as adults, while 26% discover with a faith today.

Among the nones, probably the most incessantly mentioned reasons for non-affiliation include holding that morality doesn’t require religion (78%), doubting religious doctrines (64%), and feeling that spirituality can exist without organised religion (54%).

Around half also express distrust of non secular institutions or leaders. A smaller number (6%) describe religion as harmful, while others say they continue to be open to belief but see no have to formally belong to a non secular group.

The study finds that upbringing plays a strong role in shaping adult religious identity.

A majority (84%) of adults who recall favourable childhood experiences with religion are much more more likely to remain in that faith later in life. By contrast, 69% of those that describe negative early experiences are significantly more more likely to grow to be unaffiliated.

Household religious intensity also matters: 82% of individuals brought up in strongly religious households show a greater likelihood of staying inside their childhood faith than those raised in less observant settings (47-77%).

Political identity and age further shape outcomes. Nearly three quarters (73%) of Republicans who grew up in a non secular household remain affiliated, in comparison with over half (56%) of Democrats.

Younger adults are much more likely than older generations to haven’t any religious affiliation in any respect.

Across traditions, religious change most frequently happens young.

The overwhelming majority of Americans (85%) who adopt a special faith or leave faith altogether say they did so by age 30, with nearly half (46%) making the change before maturity.

Those who leave religion entirely usually tend to achieve this sooner than those that move from one faith to a different or join a faith after being raised without one.

Once these shifts occur, they’re largely enduring.

Pew’s researchers note that while some Americans do change religious paths later in life, early maturity stays probably the most decisive period for belief, belonging and identity.