Defference between 見せる and 見させる

I’m going to explain about diffrence between 見せる and 見える.

見させます

this is causative verb for Object.
for example…

私は彼にスマートフォンを見させます。

I will make him watch his smart phone.

(He will take out his smart phone, he will watch one)

見せます

this is causative verb for both Subject and Object.
for example…

in case of Subject

私は彼にスマートフォンを見せます。

I will make him watch my smart phone.

(I will take out my smart phone, he will watch one)

私は子供に教育番組を見せます。(習慣的に)

I have my child watch educational program.

(I turn on the TV and choose educational program, and my child watches one.)

in case of Oubject

私は子供に教育番組を見せます。(習慣的に)

I have my child watch educational program.

(My child turn on the TV himself and watches educational program.)

見せさせます

this is incorrect.

about 見させます and 見せます in case of Subject

Opinions break also in Japan as to which is correct, but we can comunicate either way.