What are the advantages of seed spread versus spore spread?

In the seed, the embryo can persist for a very long time. They need water in the soil to germinate. The seed embryo is better adapted for independent life: the supply of nutrients is large; protection is better; less dependence on water.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.