@hnan
if u'll show ur relations in canada it mean that u r reducing ur visa chances by urself
rest is
1.if person other than ur blood relative sponsor u then he'll need to show the double amount like u require 25k $ then he'll need to show 50k$ and his source of income also and embassy will ask the question that why he/she is investing on u,u'll need to show his family tree,his rest of the children and lot more,in conclusion it becomes difficult
2.if ur father sponsor u and show his account then suppose
u need 25k$
he'll need to show at least 35k$