@BrizyFilo sagot ako sa #4, dependent ako pero nagsubmit din ako ng form 80. ๐ I think, migrating family unit above 18yo ay kailangang magpasa.
Regarding sa #1, I believe (based on comparison), depends on you. Sa amin ng husband ko, we provided all our travel history sa old and new passport (not more than 10 years pa naman ang travel history namin), even yung mga day trips namin. Some friends did the same pero some no. I have a friend na, nilagay lang nila yung travels na magkasama silang mag-asawa which is less than half ng travel history nila. So I would suggest, whichever makes you feel comfortable. Kung lahat, o hindi, it's up to you.