Tips for when children travel on the bus
In Spain for example, legislation does not stipulate how children under the age of 3 should travel, although the best option would be to install their CRS on the bus seat. However, this is not always possible, particularly if the bus does not have seat belts or if they are two-point belts.
All the other passengers should fasten their seat belts if these are fitted on the bus. There are buses without this important safety system, especially when these are old.
If the coach in which you are traveling does have a seat belt, we must differentiate between two- or three-point belts. A two-point seat belt is a system that mainly prevents the ejection of the occupants in the event of a rollover but is not particularly safe when it comes to children or adults and provides much less protection than a three-point belt.
On the other hand, a three-point belt may not adjust adequately, meaning the child then needs to use a booster seat. Three-point belts are designed for adults. This is why children need a booster seat, so that the seat belt does not injure them and fits properly. This will also prevent the diagonal strap from pressing on the neck.