It is evident that holders of physical shares are mostly senior citizens that find it pretty impossible and difficult to convert the same in demat format. A recent study has brought into the limelight that about 300 crore shares of the present Sensex companies are available in physical form. There is hardly any room of doubt that dematerializing of your share would allow you to avoid the risk of losing the certificate or duplicating the same.
Demat accounts are electronic account forms where you can store all the fund, equities and shares you have purchased from the stock market. Therefore, you need not keep all the share certifications with you. You can convert your physical shares into dematerialized form and keep them in the demat account.