The kids will be fine 

Kindergarten search:

Explanation of Hamburg Kindergarten and voucher system, search for Kindergarten with free places, joint visits of Kindergartens

School search:

Explanation of Hamburg schooling system, clarification of possible schools i.e private or state, joint visits of schools

Applying for child allowance:

Help in filling out forms and getting necessary docs together, sending to authority per recorded mail

Applying for Kindergarten voucher:

Help in filling out forms and getting necessary docs together, sending to authority per recorded mail

Search for recreational activities/clubs i.e. Kung fu, football, ballet:

Help in finding clubs close to school or home,  joint visits if necessary