How to handle four notaries needed for traveling abroad?

Traveling abroad requires the following four notaries:

Birth notarization: "It is suitable for family members under 18 to apply for European Schengen visa", which proves the applicant's date of birth, household registration and parents;

Notarization of birth certificate: "It is suitable for family members under the age of 18 to apply for European Schengen visa" to prove that the original and photocopy of birth certificate are consistent;

Notarization of kinship: "It is applicable to students over 18 who need to apply for a visa with their parents' (or guarantor's) assets" to prove the kinship between the applicant and the related party;

Notarization by entrustment: Notarization statement, which is applicable to entrusting the other parent or other relatives to take care of the children when one or both parents do not accompany them 18 or less.