LIFESTYLE: Are Ghanaian Customs & Traditions Still Necessary To Practice?

In our 21^st century, many things have changed within nations, customs, and traditions.  Yet in regards to Ghanaian customs and traditions, much has not changed for those who practice.
Personally, I love my heritage as a Ghanaian- Kwahu region. However, I do not believe practicing every single custom and tradition nowadays is conducive.
My parents think I am too westernized when I discuss this issue with them but I beg to differ.  My first reason for believing this is due to the economic downturn the world is experiencing currently.
Amongst Ghanaians, the customs of an elaborate funeral, wedding engagement (knocking), and baby outdooring is unrealistic for those who are trying to pay their bills.
Secondly, I am not a fan of inviting every single Ghanaian individual to a personal event that my parents, brothers, grandparents, uncles, aunts, godmother, and neighbor know.  My parents are famous for inviting a host of people to events that they claim to know back in the days. However, I believe some events should be held private.
Thirdly, Female Genital Mutilation (FGM) equates ignorance.  How is practicing this custom helpful in reducing temptation?  
Fourth on my list, as a born again Christian, I personally do not believe in the pouring of libations.  The idea of honoring my ancestors is different without having to invoke spirits from the dead in addition to idols.
Lastly, I believe that enemies do exist.  I know for a fact that not everyone wishes the best for me and wants my success.  Therefore, I refrain from involving myself in certain traditional activities that would conjure envy and jealousy amongst individuals who are known for displaying these behaviors- especially amongst certain family members and friends.
The last thing I need is to be told from a pastor that someone placed a hex on me.  What are your thoughts?  Is it necessary to practice almost every Ghanaian custom and tradition in the 21^st century?
Which particular Ghanaian customs and tradition do you think must be discontinued and why?