If everybody studies a lot, who will do all the menial, low paid jobs? There are a couple of bad answers to this, ranging from making all white collar jobs way

If everybody studies a lot, who will do all the menial, low paid jobs? There are a couple of bad answers to this, ranging from making all white collar jobs way more competitive and still forcing now-educated people take menial jobs and be poor; to bringing illegal immigrants in to exploit. The good answer is to pay good money to less educated people doing somple jobs. Bonus point, they will contribute taxes.