21 gifts for his 21st birthday is it fine?

21 gifts for his 21st birthday is it fine?

I want to make this bday special for him. I want to celebrate him turning into an adult. I want to gift him 21 things that are related to him or his favorites. But, I feel my budget is exceeding and I'm trying to buy a few cheap things for his bday. I'm confused now that should I actually do this? And get him some low quality things?

Or altogether get a good one?

Let me know how to move forward.