On Sunday morning, the family should get up in a timely manner, so that all can be properly prepared to go to Church. Large families sometimes find it difficult to have all the children washed, dressed, and brushed in time without a lot of nagging, arguing, and rushing around frantically trying to attend to last minute details. A little organization can go a long way toward a serene beginning to this holy day. First of all, have each child's church clothes laid out the night before, already inspected by a parent so that there will be no last minute arguments about inappropriate, mismatched, stained or torn apparel. Children four years old and older can certainly dress themselves. Older siblings can help the younger ones.
Good grooming is important, both from a spiritual and a psychological standpoint. Dress a child in playclothes and he will be prepared to play. This was once a guiding principle behind school dress codes and is a reason that many public schools nowadays are requiring uniforms. Little boys should wear suits or especially nice “dress” clothes to Church, just as the men do (or should) to fix the idea in the child's mind that he is wearing special clothing to a special place where he is expected to act like a man. Dress shoes go with a dress clothes. Not only do tennis shoes look ridiculous on someone attired properly for Church, but they contradict the message (which should be reinforced constantly) that Church is not a place to play.
Little girls should wear nice dresses and dress shoes. Even from infancy, their heads should be covered. Some people who are misinformed about Orthodox tradition may try to tell you that girls do not need to wear a scarf or hat until they are twelve. This mistaken idea has no basis in Orthodox tradition whatsoever. Girls and women should arrive at Church with their heads covered, stand throughout the service with their heads covered, and leave Church the same way. This is done for spiritual purposes concerning modesty and humility. Therefore, do not be misled into believing that the headcovering needs to be worn only when confessing or communing (another popular myth).
Girls, no matter what age, should never wear pants to Church. It is easy to fall to the mistaken idea that toddlers should be exempt from such a rule. Yes, they are cute and they crawl around on the floor but little girls are not puppies. They will grow up to be women, hopefully women worthy of praise and emulation. It is much better to train a child correctly from a very young age than to impose something suddenly at an arbitrary stage of maturity. The very fact that it is arbitrary and based on personal opinion rather than any teaching of the Church will create feelings of rebellion in the child for which you may have difficulty finding an adequate response. In any case, if your concern is primarily that the weather is cold, have the child wear leggings or tights under her dress.
Boys and girls should be clean and their hair brushed. Even a very small child experiences anticipation and a sense of awe about an event for which they are being so carefully prepared.
The tone of parental expectations and familial participation can be set during prayer times in the icon corner. The children should be expected to stand quietly and reverently. Even very small children should be with their parents at this time. This will help to accustom them to particular behavior whenever prayer is being said, thus preparing them to be quiet and attentive in Church.
After the Liturgy, children, as well as adults, should refrain from socializing until they are outside the church. Children who have stood quietly throughout the Divine Liturgy should be praised for their good behavior and allow to burn off some energy before the Agape meal. There is a time and place for everything and just because we do not allow children to play in the church does not mean that we do not understand their need to play.
If there is a meal at the church after Divine Liturgy, children's good manners can make for a very pleasant social experience, while bad manners can make the meal difficult for everybody. If the food is being served buffet style, children should always be served after the adults. Children will need parental supervision to be sure that they take appropriate kinds and amounts of food. Of course, nobody should take any food until the blessing has been given by the Priest.