But that's just the case. Also back end frameworks give general good enough solutions for problems but they are never optimized for particular use case. If you stay in general framework solution your competitive advantage is often easier to copy so you must make difference with customized / tailored solution. Earlier you start smaller the change is. If you hang yourself to general solution too long switch might be even impossible to make since costs and risk grow too high. And then you are in death spiral when more flexible start-ups begin to eat your share.