Deciding when to start traveling with your child is a personal choice that varies for every family, based on readiness and individual circumstances. The key to a successful trip with children at any age is careful planning, including choosing kid-friendly destinations, scheduling downtime, and packing comforting items from home.

Here are some considerations for different age groups:

- **Under 3 Years**: Travel can be challenging with infants and toddlers due to unpredictable needs and their sensitivity to new environments. This age group is also more prone to health issues related to climate and environmental changes.

- **Ages 3 and Up**: Children become more adaptable and able to communicate their needs, making travel more manageable. Their bodies have also adjusted better to routines, allowing for more structured daily plans.

- **Memory and Age**: Scientifically, children start to form more lasting memories around the age of 6 or 7. By age 10, they can fully recall their experiences, making trips more memorable and impactful.

Given these insights, traveling with children around the age of 7 or older may be ideal for creating lasting memories. However, this doesn't mean younger children can't enjoy travel; it simply suggests that trips with younger kids might require different expectations and planning. Ultimately, the best age to travel with your child is when you feel your family is ready to embrace the adventure together, keeping in mind that each trip's planning and expectations might evolve as your child grows.