Baby blanket

My son 3 years old soon. But still no have blanket yet. I'm so bad.. 

That's why try to crochet a baby blanket for son.. 

Try to crochet but after that then realize blanket slightly heavy T.T"

Here all day hot weather.. No suitable to use such thick blanket lol..

Haiz... Should I buy a blanket ? Pity son no have blanket ...