@Ace Shun Zhong, yes you are right, that is the ideal scenario, but as you know owners nowadays dont event read the clause, and when it comes to something go wrong, then they will start blaming everybody except themselves ;)
Unless the tenancy lease is more than tens of thousands or it involves in long term leasing e.g. 3+3+3, very seldom the owner would instruct the lawyer to prepare a tenancy agreement worth MYR 2k and below, and moreover the tenant also would not want to pay for the lawyer tenancy agreement cost (which is usually not cheap)
and normally whoever pays the agreement fee the clause will favor the person...
just imagine, if you are paying the SPA to buy a property and the clause is favorable to the seller instead of the buyer e.g. Freehold max is 3+1 for transfer and if you did not include the clause for late charges of interest for it, this would not be fair for the buyer.
so if the SPA is being borne by the buyer, the clause need to be favorable to the person who is paying it, which is why the standard interest charges would be include into it should the seller delay the whole process.
agreement is use to protect both parties interest, as a owner of the property if you decided to rent your property out, i am sure when the tenancy agreement is being drafted, late payment charges is included into it and also damages to be incurred by the tenant should the item (for full furnished) unit is found to be damaged, excluding wear and tear furniture and fixings .