Why can we not execute a stored procedure inside a function in SQL Server

Question

Why can we not execute a stored procedure inside a function when the opposite is possible?

Answer 1

I know this is already been answered but in SQL server the function is not suppose to change the data but the procedure is meant to.

In addition to this i like to add that we cannot select a procedure or put it in a where clause but we can do this with a function.

We use function to shorten the code so its greatly helpful as it reduces a lot of query for the coder.

Hope this helps.