yup, salah used to be more frequent way back then. alhamdulilah, allah has made it easier for us and lessened it to five. that's not too much, considering how long some people spend on gaia. but even though it's only five, i miss my salah sometimes sad

it is not good to question the duties that Allah has given us excessively. example: why not 2 or 3 prayers, less rakaat, etc. thinking about why/how questions can make you doubt Allah. Allah is our creator and we should obey him, no matter what.