A Permanent Resident of Singapore is not a citizen of Singapore. Being a PR means you can purchase property, work and live in Singapore. You are considered as part of the Singapore community and eligible to travelling in and out of the nation as often as you wish unlike foreigners who have restricted movement and require a visa. If you have a child, you can choose to enroll them into a public education school of your choice just like any ordinary Singaporeans. Regarding work, your employer has to complied to Singaporean law and make it a must to make monthly contributions to your Central Provident Fund (CPF) account. For job switching, you no longer need to reapply for a new working visa each time you want to switch jobs.
There’s a lot of benefits for a Singapore PR holder. However, the downside is that your male kids (if they are also PR’s) must enter the national service or known as the “military service” once they have reached the age of 18. You cannot opt out of this national program if you want to stay as a PR.