Question

how should we give lack of love and affection for family​

Answer 1

$\red{\bold{\underline{\underline{ANSWER:}}}}$

It could be from your own personal psychological makeup, or from how you were raised. Fake it til you make it. One of the ways to do that is to show him/her your love. Long term effects of lack of affection in childhood can create complexes in the heart and mind of the child. 

$\pink{\bold{♡Hope \: it \: helps♡}}$